Remove dead Mac code.

No longer needed since Mac builds are targeting 10.9.

Change-Id: I2ff87eda6ba3f9af5c2ae3d9cdd034791542b7cf
Reviewed-on: https://chromium-review.googlesource.com/686295Reviewed-by: Robert Sesek <rsesek@chromium.org>
Reviewed-by: Sadrul Chowdhury <sadrul@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Reviewed-by: Giovanni Ortuño Urquidi <ortuno@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#505280}

build/config/BUILD.gn

@@ -300,10 +300,7 @@ config("executable_config") {
     # Currently only turn on linker CFI for executables.
     configs += [ "//build/config/win:cfi_linker" ]
   } else if (is_mac) {
-    configs += [
-      "//build/config/mac:mac_dynamic_flags",
-      "//build/config/mac:mac_executable_flags",
-    ]
+    configs += [ "//build/config/mac:mac_dynamic_flags" ]
   } else if (is_ios) {
     configs += [
       "//build/config/ios:ios_dynamic_flags",

build/config/mac/BUILD.gn

@@ -82,12 +82,6 @@ config("mac_dynamic_flags") {
   }
 }
 
-# On Mac, this is used only for executables.
-config("mac_executable_flags") {
-  # Remove this when targeting >=10.7 since it is the default in that config.
-  ldflags = [ "-Wl,-pie" ]  # Position independent.
-}
-
 # The ldflags referenced below are handled by
 # //build/toolchain/mac/linker_driver.py.
 # Remove this config if a target wishes to change the arguments passed to the

chrome/common/service_process_util_mac_unittest.mm

@@ -23,17 +23,6 @@
 #include "chrome/common/mac/mock_launchd.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-// Once Chrome no longer supports OSX 10.7, everything within this
-// preprocessor block can be removed.
-#if !defined(MAC_OS_X_VERSION_10_8) || \
-    MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_8
-@interface NSFileManager (Chrome)
-- (BOOL)trashItemAtURL:(NSURL*)url
-      resultingItemURL:(NSURL* __nullable* __nullable)outResultingURL
-                 error:(NSError**)error;
-@end
-#endif
-
 class ServiceProcessStateFileManipulationTest : public ::testing::Test {
  public:
   void TrashFunc(const base::FilePath& src) {

chrome/installer/mac/app/Unpacker.m

@@ -146,9 +146,6 @@ static void unmount_callback(DADiskRef disk,
 - (void)didFinishEjectingDisk:(DADiskRef)disk
                 withDissenter:(DADissenterRef)dissenter {
   DASessionSetDispatchQueue(session_, NULL);
-#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_8
-  dispatch_release(unpack_dq_);
-#endif
   CFRelease(session_);
   NSError* error = nil;
   if (dissenter) {
@@ -167,4 +164,4 @@ static void unmount_callback(DADiskRef disk,
   }
 }
 
-@end
+@end
\ No newline at end of file

components/crash/core/common/objc_zombie.mm

@@ -21,12 +21,6 @@
 #include "build/build_config.h"
 #include "components/crash/core/common/crash_keys.h"
 
-#if !defined(OS_IOS) && (MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_6)
-// Apparently objc/runtime.h doesn't define this with the 10.6 SDK yet.
-// The docs say it exists since 10.6 however.
-OBJC_EXPORT void *objc_destructInstance(id obj);
-#endif
-
 // Deallocated objects are re-classed as |CrZombie|.  No superclass
 // because then the class would have to override many/most of the
 // inherited methods (|NSObject| is like a category magnet!).

device/bluetooth/bluetooth_l2cap_channel_mac.mm

@@ -53,13 +53,6 @@
   channel_->OnChannelClosed(l2capChannel);
 }
 
-// These methods are marked as optional in the 10.8 SDK, but not in the 10.6
-// SDK. These empty implementations can be removed once we drop the 10.6 SDK.
-- (void)l2capChannelReconfigured:(IOBluetoothL2CAPChannel*)l2capChannel {
-}
-- (void)l2capChannelQueueSpaceAvailable:(IOBluetoothL2CAPChannel*)l2capChannel {
-}
-
 @end
 
 namespace device {

device/bluetooth/bluetooth_socket_mac.mm

@@ -33,15 +33,6 @@
 #include "net/base/io_buffer.h"
 #include "net/base/net_errors.h"
 
-#if !defined(MAC_OS_X_VERSION_10_7) || \
-    MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_7
-
-@interface IOBluetoothDevice (LionSDKDeclarations)
-- (IOReturn)performSDPQuery:(id)target uuids:(NSArray*)uuids;
-@end
-
-#endif  // MAC_OS_X_VERSION_10_7
-
 using device::BluetoothSocket;
 
 // A simple helper class that forwards SDP query completed notifications to its

ui/accelerated_widget_mac/ca_renderer_layer_tree.mm

@@ -22,33 +22,6 @@
 #include "ui/gl/ca_renderer_layer_params.h"
 #include "ui/gl/gl_image_io_surface.h"
 
-#if !defined(MAC_OS_X_VERSION_10_8) || \
-    MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_8
-extern NSString* const AVLayerVideoGravityResize;
-extern "C" void NSAccessibilityPostNotificationWithUserInfo(
-    id object,
-    NSString* notification,
-    NSDictionary* user_info);
-extern "C" OSStatus CMSampleBufferCreateForImageBuffer(
-    CFAllocatorRef,
-    CVImageBufferRef,
-    Boolean dataReady,
-    CMSampleBufferMakeDataReadyCallback,
-    void*,
-    CMVideoFormatDescriptionRef,
-    const CMSampleTimingInfo*,
-    CMSampleBufferRef*);
-extern "C" CFArrayRef CMSampleBufferGetSampleAttachmentsArray(CMSampleBufferRef,
-                                                              Boolean);
-extern "C" OSStatus CMVideoFormatDescriptionCreateForImageBuffer(
-    CFAllocatorRef,
-    CVImageBufferRef,
-    CMVideoFormatDescriptionRef*);
-extern "C" CMTime CMTimeMake(int64_t, int32_t);
-extern CFStringRef const kCMSampleAttachmentKey_DisplayImmediately;
-extern const CMTime kCMTimeInvalid;
-#endif  // MAC_OS_X_VERSION_10_8
-
 namespace ui {
 
 namespace {

ui/base/test/scoped_fake_nswindow_fullscreen.mm

@@ -17,17 +17,6 @@
 #include "base/run_loop.h"
 #include "base/threading/thread_task_runner_handle.h"
 
-// This method exists on NSWindowDelegate on 10.7+.
-// To build on 10.6, we just need to declare it somewhere. We'll test
-// -[NSObject respondsToSelector] before calling it.
-#if !defined(MAC_OS_X_VERSION_10_7) || \
-    MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_7
-@protocol NSWindowDelegateLion
-- (NSSize)window:(NSWindow*)window
-    willUseFullScreenContentSize:(NSSize)proposedSize;
-@end
-#endif
-
 // Donates a testing implementation of [NSWindow toggleFullScreen:].
 @interface ToggleFullscreenDonorForWindow : NSObject
 @end