Disable all screen-capturer tests

webrtc/modules/desktop_capture/screen_capturer_unittest.cc

Index: webrtc/modules/desktop_capture/screen_capturer_unittest.cc
diff --git a/webrtc/modules/desktop_capture/screen_capturer_unittest.cc b/webrtc/modules/desktop_capture/screen_capturer_unittest.cc
index cb639b9e91e5c987190c58a2404fd1b8f5c6893a..490adf9b5a046ea46d60fbe43d0f6253d3b5f3fe 100644
--- a/webrtc/modules/desktop_capture/screen_capturer_unittest.cc
+++ b/webrtc/modules/desktop_capture/screen_capturer_unittest.cc
@@ -271,11 +271,12 @@ TEST_F(ScreenCapturerTest, Capture) {
   EXPECT_TRUE(it.IsAtEnd());
 }
 
-TEST_F(ScreenCapturerTest, CaptureUpdatedRegion) {
+// TODO(zijiehe): Bug 647067 is tracking the reason of flaky of following
+// disabled tests.
+TEST_F(ScreenCapturerTest, DISABLED_CaptureUpdatedRegion) {
   TestCaptureUpdatedRegion();
 }
 
-// TODO(zijiehe): Find out the reason of failure of this test on trybot.
 TEST_F(ScreenCapturerTest, DISABLED_TwoCapturers) {
   std::unique_ptr<ScreenCapturer> capturer2 = std::move(capturer_);
   SetUp();
@@ -347,7 +348,7 @@ TEST_F(ScreenCapturerTest, UseDirectxCapturerWithSharedBuffers) {
   EXPECT_EQ(frame->shared_memory()->id(), kTestSharedMemoryId);
 }
 
-TEST_F(ScreenCapturerTest, CaptureUpdatedRegionWithDirectxCapturer) {
+TEST_F(ScreenCapturerTest, DISABLED_CaptureUpdatedRegionWithDirectxCapturer) {
   if (!CreateDirectxCapturer()) {
     return;
   }
@@ -355,7 +356,7 @@ TEST_F(ScreenCapturerTest, CaptureUpdatedRegionWithDirectxCapturer) {
   TestCaptureUpdatedRegion();
 }
 
-TEST_F(ScreenCapturerTest, TwoDirectxCapturers) {
+TEST_F(ScreenCapturerTest, DISABLED_TwoDirectxCapturers) {
   if (!CreateDirectxCapturer()) {
     return;
   }
@@ -365,7 +366,7 @@ TEST_F(ScreenCapturerTest, TwoDirectxCapturers) {
   TestCaptureUpdatedRegion({capturer_.get(), capturer2.get()});
 }
 
-TEST_F(ScreenCapturerTest, TwoMagnifierCapturers) {
+TEST_F(ScreenCapturerTest, DISABLED_TwoMagnifierCapturers) {
   CreateMagnifierCapturer();
   std::unique_ptr<ScreenCapturer> capturer2 = std::move(capturer_);
   CreateMagnifierCapturer();