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This CL introduces VirtualAudio{Input,Output}Streams to handle redirecting audio output from Chrome into a virtual input stream to be used as "fake" microphone input. That stream could then be used through WebRTC peer connection, essentially playing back audio from the browser remotely.

Limitations:
Currently, only one VirtualAudioInputStream is supported, so we can only capture browser-wide audio once. Subsequent requests for audio through the TabCapture API will result in no audio for that stream.

Overview:
When a VirtualAudioInputStream is created (which is triggered by the Chrome TabCapture API), we trigger a device change event which will cause all currently active output streams to be recreated as VirtualAudioOutputStreams. These will attach to the virtual input stream when they start/resume playback.

When the VirtualAudioInputStream is to be released, it triggers another device change event to revert all the output streams back to output to sound hardware. The VirtualAudioOutputStreams must detach from the VirtualAudioInputStream when they are stopped, thus VirtualAudioInputStream must outlive all VirtualAudioOutputStreams.

BUG=153392

Review URL: https://chromiumcodereview.appspot.com/11298006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170892 0039d316-1c4b-4281-b951-d872f2087c98

This change causes shutdown crashes when chrome menu is used to exit.

> Keep browser process alive while there are platform apps with background pages running. This does not happen on Android or ChromeOS builds: Android does not support browser process keep alive, and ChromeOS does not need or like it.
> 
> This change prevents platform apps getting killed unceremoniously while they have background pages active.
> 
> This also delays the process being shutdown after closing the last platform app window, as background pages are kept alive for 15 seconds after their last activity is completed.
> 
> This change re-lands r165772 which caused problems on Google branded ChromeOS. This version does not add keep alives for ChromeOS and was tested on the ChromeOS try bots.
> 
> TBR=davemoore@chromium.org for the ash launcher test change.
> 
> BUG=155457
> TEST=Make sure platform apps can be used from the launcher without chrome windows open; make sure Chrome shuts down properly in all cases.
> 
> 
> Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=165772
> 
> Review URL: https://chromiumcodereview.appspot.com/11117011

TBR=benwells@chromium.org
Review URL: https://codereview.chromium.org/11299326

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170891 0039d316-1c4b-4281-b951-d872f2087c98

The EventHandler overriddes should mark the event as having been processed
(Event::SetHandled) when the event triggered an action, or stop the propagation
of the event (Event::StopPropagation) as appropriate (when the handler destroyed
the event-target, for example).

BUG=163618

Review URL: https://codereview.chromium.org/11280290

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170890 0039d316-1c4b-4281-b951-d872f2087c98

Safe reference counting for skia objects ahoy!

R=jamesr
BUG=163454
Depends on: https://codereview.chromium.org/11418217/
NOTRY=true

Review URL: https://chromiumcodereview.appspot.com/11412255

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170889 0039d316-1c4b-4281-b951-d872f2087c98

- This CL changes the directory title for origins, from "chrome-extension://exampleextension" to "exampleextension"
- Also, drops file name escape.

BUG=163554

Review URL: https://codereview.chromium.org/11411280

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170887 0039d316-1c4b-4281-b951-d872f2087c98

- The method takes FileSystemURL and returns a new enum: fileapi::SyncFileStatus, which takes one of either: UNKNOWN, SYNCED, HAS_PENDING_CHANGES or CONFLICTING

BUG=163860
TEST=SyncFileSystemService.GetFileSyncStatus

Review URL: https://codereview.chromium.org/11421197

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170886 0039d316-1c4b-4281-b951-d872f2087c98

BUG=163454
R=sky
Depends on: https://codereview.chromium.org/11280251/
NOTRY=true

Review URL: https://chromiumcodereview.appspot.com/11414251

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170885 0039d316-1c4b-4281-b951-d872f2087c98

BUG=153703

Review URL: https://codereview.chromium.org/11419274

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170884 0039d316-1c4b-4281-b951-d872f2087c98

BUG=127536
Review URL: https://codereview.chromium.org/11434097

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170883 0039d316-1c4b-4281-b951-d872f2087c98

Move print_preview_test because it's only used in unit_tests, and update as-a-result unneeded dependency on test_shell_test_support.

R=jam@chromium.org
TEST=interactive_ui_tests, unit_tests, and browser_tests link

Review URL: https://codereview.chromium.org/11434098

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170882 0039d316-1c4b-4281-b951-d872f2087c98

We only have to run the complete tree synchronization algorithm if the cc::Layer tree's
structure is actually changed, otherwise we can just push properties over since the
cc::LayerImpl tree structure is never changed outside of commit.

Since scroll offset updates are tied into the tree synchronization algorithm, we currently
have to do a full tree sync for scroll updates. Fixing this will speed up scroll operations
but requires a bit more work.

Speeds up cc_perftests tenTenSingleThread by 7.3%

BUG=161166


Review URL: https://chromiumcodereview.appspot.com/11316297

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170881 0039d316-1c4b-4281-b951-d872f2087c98

This is a retry of r169875, hopefully with fewer regressions.

This time, I simply notify the theme service (instantiating it
if necessary) when a theme extension is installed.

This should avoid the theme regression since that path is not
taken on browser startup.

BUG=161203
TBR=pkotwicz@chromium.org

Review URL: https://codereview.chromium.org/11411330

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170880 0039d316-1c4b-4281-b951-d872f2087c98

This covers remaining content/ and webkit/ manual ref-counting.

BUG=163454
R=piman
Depends on: https://codereview.chromium.org/11418217/
NOTRY=true

Review URL: https://chromiumcodereview.appspot.com/11428099

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170879 0039d316-1c4b-4281-b951-d872f2087c98

R=vandebo@chromium.org
BUG=163454
Depends on: https://codereview.chromium.org/11428099/
NOTRY=true

Review URL: https://chromiumcodereview.appspot.com/11316263

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170878 0039d316-1c4b-4281-b951-d872f2087c98

Instead of giving const pointers to the renderer, we should provide it with
non-const pointers, and expect it to consume the render passes that we provide
it.

In ubercomp, the delegating renderer will pass ownership of the passes to the
CompositorFrame. 

Covered by existing tests, no change in behaviour.

BUG=152337
R=enne,piman
NOTRY=true

Review URL: https://chromiumcodereview.appspot.com/11419269

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170877 0039d316-1c4b-4281-b951-d872f2087c98

TEST=existing test, GDataWapiParserTest.*
BUG=


Review URL: https://chromiumcodereview.appspot.com/11428046

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170876 0039d316-1c4b-4281-b951-d872f2087c98

This removes the code for sending the user to GView for PDF
and .ppt files.  The --enable-gview flag has been passed
unconditionally on Chrome OS for a long time, but we ignore
it in official builds.  For Chromium OS, I believe that
https://chrome.google.com/webstore/detail/docs-pdfpowerpoint-viewer/nnbmlagghjjcbdhgmkedmbmedengocbn
provides similar functionality.

BUG=161786
TBR=ben@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11411071

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170875 0039d316-1c4b-4281-b951-d872f2087c98

rename files to match IDR names.

BUG=152929
TEST=none

Review URL: https://codereview.chromium.org/11348366

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170872 0039d316-1c4b-4281-b951-d872f2087c98

XP seems to be lowering the priority of the thread responding to
audio callbacks when backgrounded, causing glitching.

BUG=161307
TEST=background playback on XP works without issue.

Review URL: https://codereview.chromium.org/11316284

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170870 0039d316-1c4b-4281-b951-d872f2087c98

Tweaks HQP "new scoring" by
(1) By a smooth squash, prevent HQP from scoring above 1400.  This makes sure inlineable, high-quality, prefix matches (whether scored by HUP or by the HUP-like mode in HQP), which has scores in the 1400-1410 range, are not trumped.
(2) Remove any credit for mid-word matches in titles.  I decided spacing in titles should always make sense and allowing mid-word matches here seems wrong.

Also, I changed the name of the "new scoring" field trial as well so we can distinguish the new behavior trial from the old behavior trial.

This trial is set up independent of the "old scoring" ignore-all-mid-word-matches field trial.  I prefer it this way because then I can easily enable or disable one without having to change much code.  Will analyze them in a dependent/correlated fashion--that is, I will only look at this trial when in the control group of the ignore-mid-word-matches trial and will only analyze the mid-word-matches trial when in the control group of this trial.

BUG=161911
TEST=


Review URL: https://chromiumcodereview.appspot.com/11416285

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170869 0039d316-1c4b-4281-b951-d872f2087c98

There's a measurable (2.3-3%) perf improvement from inlining QuadF's dtor and
ctor, even though FindBadConstructs thinks it's too large.

BUG=
NOTRY=true

Review URL: https://chromiumcodereview.appspot.com/11280279

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170868 0039d316-1c4b-4281-b951-d872f2087c98

> Browser Plugin: Update DOM Node attributes when properties are updated
> 
> BUG=163611
> Test=BrowserPluginHostTest.*, BrowserPluginTest.*, WebViewTest.*
> 
> Review URL: https://codereview.chromium.org/11418261

TBR=fsamuel@chromium.org
Review URL: https://codereview.chromium.org/11415279

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170867 0039d316-1c4b-4281-b951-d872f2087c98

BUG=163611
Test=BrowserPluginHostTest.*, BrowserPluginTest.*, WebViewTest.*

Review URL: https://codereview.chromium.org/11418261

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170866 0039d316-1c4b-4281-b951-d872f2087c98

This will hide the popup when the browser changes size or location. Also add some tests for the WidgetObserver for the function we are observing with.

Resubmitting https://codereview.chromium.org/11308124/ with CloseWidgetAndNoLeaking disable on aura

TBR=sky@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11414266

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170864 0039d316-1c4b-4281-b951-d872f2087c98

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170863 0039d316-1c4b-4281-b951-d872f2087c98

R=jkummerow@chromium.org


Review URL: https://chromiumcodereview.appspot.com/11418290

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170862 0039d316-1c4b-4281-b951-d872f2087c98

NOTRY=true
BUG=none

Review URL: https://chromiumcodereview.appspot.com/11414267

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170861 0039d316-1c4b-4281-b951-d872f2087c98

This value used to be defined on the window object, but has since
moved to the "client".

BUG=163004


Review URL: https://chromiumcodereview.appspot.com/11348336

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170860 0039d316-1c4b-4281-b951-d872f2087c98

Review URL: https://codereview.chromium.org/11299295

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170859 0039d316-1c4b-4281-b951-d872f2087c98

BUG=163680
TEST=Local on android

Review URL: https://codereview.chromium.org/11299314

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170858 0039d316-1c4b-4281-b951-d872f2087c98

BUG=157656


Review URL: https://chromiumcodereview.appspot.com/11280255

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170857 0039d316-1c4b-4281-b951-d872f2087c98

BUG=163984
R=derat@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/11421213

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170856 0039d316-1c4b-4281-b951-d872f2087c98

These days, Linux Chromium uses two sandboxes simultaneously: a SUID
sandbox and (on recent kernels) a seccomp-BPF sandbox.  There's no
reason to disable the seccomp-BPF sandbox when running NaCl tests.
There's not much reason to disable the SUID sandbox either: the SUID
helper should be installed on the bots these days, but if it's not
present Chromium should continue fine without it.

BUG=none
TEST=nacl_integration

Review URL: https://codereview.chromium.org/11412294

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170855 0039d316-1c4b-4281-b951-d872f2087c98

R=piman,enne
BUG=152337
NOTRY=true

Review URL: https://chromiumcodereview.appspot.com/11419296

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170854 0039d316-1c4b-4281-b951-d872f2087c98

Tests:
content_unittests:CCMessagesTest.AllQuads
content_unittests:CCMessagesTest.Resources

BUG=152337
R=piman
NOTRY=true

Review URL: https://chromiumcodereview.appspot.com/11308306

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170853 0039d316-1c4b-4281-b951-d872f2087c98

of HMAC::Init() and HMAC::Sign().

R=agl@chromium.org,bradnelson@chromium.org,thakis@chromium.org
BUG=none
TEST=none

Review URL: https://chromiumcodereview.appspot.com/11419270

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170852 0039d316-1c4b-4281-b951-d872f2087c98

This class behaves like scoped_refptr and wraps the raw SkRefCnt subclass
so that we don't have to call ref() and unref() directly on the pointers.

Tested by:
unit_tests:RefPtrTest.ReferenceCounting
unit_tests:RefPtrTest.Construct
unit_tests:RefPtrTest.DeclareAndAssign
unit_tests:RefPtrTest.Assign
unit_tests:RefPtrTest.Upcast

BUG=163454
NOTRY=true

Review URL: https://chromiumcodereview.appspot.com/11418217

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170851 0039d316-1c4b-4281-b951-d872f2087c98

Revert 170800 - Speculatively reverting  166585 to see if it fixes issue 160300 - 6% startup regression on Mac 10.6

Revert 166585 - Add a histogram enum to determine the cat's flavor and how many bits there are
in it.

BUG=159886, 160300
Review URL: https://codereview.chromium.org/11391002

TBR=mark@chromium.org
Review URL: https://codereview.chromium.org/11348360

TBR=mark@chromium.org
Review URL: https://codereview.chromium.org/11411343

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170850 0039d316-1c4b-4281-b951-d872f2087c98

by making timeout from 5 (default) to 15 seconds.

BUG=152033
Android java test change. Ran through android trybot
NOTRY=true

Review URL: https://chromiumcodereview.appspot.com/11316304

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170848 0039d316-1c4b-4281-b951-d872f2087c98

NOTRY=true
R=yusukes@chromium.org
BUG=162268
Depends on: https://codereview.chromium.org/11421055/
Depends on: https://codereview.chromium.org/11417144/
Depends on: https://codereview.chromium.org/11415124/


Review URL: https://chromiumcodereview.appspot.com/11280153

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170847 0039d316-1c4b-4281-b951-d872f2087c98