Re-enable ScreenCapturer.Capture test under TSan v2.

The test has moved since the issue was reported, and only repro'd if the
full remoting test-suite was run, suggesting that some other test is at
fault.

BUG=167260


Review URL: https://chromiumcodereview.appspot.com/12223066

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@181888 0039d316-1c4b-4281-b951-d872f2087c98

media/video/capture/screen/screen_capturer_unittest.cc

@@ -48,13 +48,7 @@ TEST_F(ScreenCapturerTest, StartCapturer) {
   capturer_->Stop();
 }
 
-#if defined(THREAD_SANITIZER)
-// ThreadSanitizer v2 reports a use-after-free, see http://crbug.com/163641.
-#define MAYBE_Capture DISABLED_Capture
-#else
-#define MAYBE_Capture Capture
-#endif
-TEST_F(ScreenCapturerTest, MAYBE_Capture) {
+TEST_F(ScreenCapturerTest, Capture) {
   // Assume that Start() treats the screen as invalid initially.
   EXPECT_CALL(delegate_,
               OnCaptureCompleted(DirtyRegionIsNonEmptyRect()));