Revert "[MediaRouter] Add warning for invalid permissions"

This reverts commit b5bdc990.

Reason for revert: 
`MediaRouterViewsUITest.RouteCreationTimeoutForDesktop` started failing after this CL in https://ci.chromium.org/p/chromium/builders/ci/Mac10.15%20Tests/2446?blamelist=1#blamelist-tab. The error message in the related test is https://logs.chromium.org/logs/chromium/buildbucket/cr-buildbucket.appspot.com/8874579294717582880/+/steps/unit_tests_on_Mac-10.15/0/logs/Deterministic_failure:_MediaRouterViewsUITest.RouteCreationTimeoutForDesktop__status_CRASH_/0:

```
Actual function call count doesn't match EXPECT_CALL(*mock_router_, CreateRouteInternal( _, _, _, _, _, base::TimeDelta::FromSeconds(timeout_seconds), false))...
         Expected: to be called once
           Actual: never called - unsatisfied and active
Stack trace:
0   unit_tests                          0x000000010fcfba8c testing::internal::GoogleTestFailureReporter::ReportFailure(testing::internal::FailureReporterInterface::FailureType, char const*, int, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) + 92
1   unit_tests                          0x000000010fcffc05 testing::internal::UntypedFunctionMockerBase::VerifyAndClearExpectationsLocked() + 597
2   unit_tests                          0x000000010fd00521 testing::Mock::VerifyAndClearExpectationsLocked(void*) + 401
3   unit_tests                          0x000000010fd00371 testing::Mock::VerifyAndClearExpectations(void*) + 33
4   unit_tests                          0x000000010f26566b media_router::MediaRouterViewsUITest::StartCastingAndExpectTimeout(media_router::MediaCastMode, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, int) + 2491
5   unit_tests                          0x000000010f2659a4 media_router::MediaRouterViewsUITest_RouteCreationTimeoutForDesktop_Test::TestBody() + 52

Received signal 11 SEGV_MAPERR 000000000008
 [0x000114431eb9]
 [0x000114377dc3]
 [0x000114431dd1]
 [0x7fff70e295fd]
 [0x7fff70de9297]
 [0x00010f2659a4]
 [0x00010fd1860d]
 [0x00010fd193cf]
 [0x00010fd19d47]
 [0x00010fd283a7]
 [0x00010fd27e1f]
 [0x00011384b7fb]
 [0x0001138623b3]
 [0x00011386225f]
 [0x000113835f25]
 [0x7fff70c30cc9]
[end of stack trace]
```

Bug: 1106647


Original change's description:
> [MediaRouter] Add warning for invalid permissions
> 
> This patch adds a new check to the media router views UI that, on Mac OS
> X 10.15+ (Catalina), checks if the screen capture permission has been
> granted, and shows a warning message and fails to cast if so.
> 
> Bug: 1087236
> Change-Id: I3afdfdb06a011fee3e6fd5f199d375d0ab6eef88
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2298479
> Commit-Queue: Jordan Bayles <jophba@chromium.org>
> Reviewed-by: Takumi Fujimoto <takumif@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#789194}

TBR=mfoltz@chromium.org,takumif@chromium.org,jophba@chromium.org

Change-Id: I64651c90503bf90a2f9cfca99f7929efd35b4c23
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 1087236
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2302613Reviewed-by: Mike West <mkwst@chromium.org>
Commit-Queue: Mike West <mkwst@chromium.org>
Cr-Commit-Position: refs/heads/master@{#789391}

chrome/app/media_router_strings.grdp

@@ -76,13 +76,8 @@
   <message name="IDS_MEDIA_ROUTER_ISSUE_TAB_AUDIO_NOT_SUPPORTED" desc="Title of an issue shown when the user is casting a tab, but only its visual content can be cast and not its audio output.">
     Casting tab audio is not supported on this device.
   </message>
-  <if expr="is_macosx">
-    <message name="IDS_MEDIA_ROUTER_ISSUE_MAC_SCREEN_CAPTURE_PERMISSION_ERROR" desc="Title of an issue shown when the user is casting a window or desktop, and the associated MAC OS X 10.15+ system permission for 'Screen Recording' is not granted.">
-      Unable to cast screen. Check the Screen Recording permission in System Preferences.
-    </message>
-  </if>
 
-<!-- Sink List -->
+  <!-- Sink List -->
   <message name="IDS_MEDIA_ROUTER_STATUS_LOOKING_FOR_DEVICES" desc="Status text temporarily shown while searching for Cast devices but none have been found.">
     Looking for devices
   </message>

chrome/app/media_router_strings_grdp/IDS_MEDIA_ROUTER_ISSUE_MAC_SCREEN_CAPTURE_PERMISSION_ERROR.png.sha1

-132219c7007d8910e5c140403116c879cbae30bc
\ No newline at end of file

chrome/browser/ui/views/media_router/media_router_views_ui.cc

@@ -54,11 +54,6 @@
 #include "ui/display/display.h"
 #include "url/origin.h"
 
-#if defined(OS_MACOSX)
-#include "base/mac/mac_util.h"
-#include "ui/base/cocoa/permissions_utils.h"
-#endif
-
 namespace media_router {
 
 namespace {
@@ -373,15 +368,6 @@ bool MediaRouterViewsUI::CreateRoute(const MediaSink::Id& sink_id,
     return false;
   }
 
-#if defined(OS_MACOSX)
-  if (base::mac::IsAtLeastOS10_15() &&
-      cast_mode == MediaCastMode::DESKTOP_MIRROR &&
-      !ui::IsScreenCaptureAllowed()) {
-    SendIssueForScreenPermission(sink_id);
-    return false;
-  }
-#endif
-
   GetIssueManager()->ClearNonBlockingIssues();
 
   auto on_document_available = base::BindOnce(
@@ -759,18 +745,6 @@ void MediaRouterViewsUI::SendIssueForRouteTimeout(
   AddIssue(issue_info);
 }
 
-#if defined(OS_MACOSX)
-void MediaRouterViewsUI::SendIssueForScreenPermission(
-    const MediaSink::Id& sink_id) {
-  std::string issue_title = l10n_util::GetStringUTF8(
-      IDS_MEDIA_ROUTER_ISSUE_MAC_SCREEN_CAPTURE_PERMISSION_ERROR);
-  IssueInfo issue_info(issue_title, IssueInfo::Action::DISMISS,
-                       IssueInfo::Severity::WARNING);
-  issue_info.sink_id = sink_id;
-  AddIssue(issue_info);
-}
-#endif
-
 void MediaRouterViewsUI::SendIssueForUnableToCast(
     MediaCastMode cast_mode,
     const MediaSink::Id& sink_id) {

chrome/browser/ui/views/media_router/media_router_views_ui.h

@@ -233,14 +233,8 @@ class MediaRouterViewsUI
       const MediaSink::Id& sink_id,
       const base::string16& presentation_request_source_name);
 
-// Creates and sends an issue if casting fails due to lack of screen
-// permissions.
-#if defined(OS_MACOSX)
-  void SendIssueForScreenPermission(const MediaSink::Id& sink_id);
-#endif
-
   // Creates and sends an issue if casting fails for any reason other than
-  // those above.
+  // timeout.
   void SendIssueForUnableToCast(MediaCastMode cast_mode,
                                 const MediaSink::Id& sink_id);