Disable flaky tests on Win7.

WebRtcVideoDisplayPerfBrowserTests/WebRtcVideoDisplayPerfBrowserTest.MANUAL_TestVideoDisplayPerfH264/2
WebRtcVideoQualityBrowserTests/WebRtcVideoQualityBrowserTest.MANUAL_TestVideoQualityVp9/0

Bug: 993020
Change-Id: Ica9095a50096f9b7667e8d4f7774ed249460537b
TBR: tommicli@chromuim.org, hbos@chromium.org
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1749626Reviewed-by: Tommy Li <tommycli@chromium.org>
Commit-Queue: Roger Tawa <rogerta@chromium.org>
Cr-Commit-Position: refs/heads/master@{#686154}

chrome/browser/media/webrtc/webrtc_video_display_perf_browsertest.cc

@@ -8,6 +8,7 @@
 #include "base/strings/string_tokenizer.h"
 #include "base/strings/stringprintf.h"
 #include "base/test/trace_event_analyzer.h"
+#include "build/build_config.h"
 #include "chrome/browser/media/webrtc/webrtc_browsertest_base.h"
 #include "chrome/browser/media/webrtc/webrtc_browsertest_common.h"
 #include "chrome/browser/ui/browser.h"
@@ -462,9 +463,16 @@ IN_PROC_BROWSER_TEST_P(WebRtcVideoDisplayPerfBrowserTest,
   TestVideoDisplayPerf("VP9");
 }
 
+// Fails consistently on Win7 builders.  crbug.com/993020.
+#if defined(OS_WIN)
+#define MAYBE_MANUAL_TestVideoDisplayPerfH264 \
+  DISABLED_MANUAL_TestVideoDisplayPerfH264
+#else
+#define MAYBE_MANUAL_TestVideoDisplayPerfH264 MANUAL_TestVideoDisplayPerfH264
+#endif
 #if BUILDFLAG(RTC_USE_H264)
 IN_PROC_BROWSER_TEST_P(WebRtcVideoDisplayPerfBrowserTest,
-                       MANUAL_TestVideoDisplayPerfH264) {
+                       MAYBE_MANUAL_TestVideoDisplayPerfH264) {
   if (!base::FeatureList::IsEnabled(content::kWebRtcH264WithOpenH264FFmpeg)) {
     LOG(WARNING) << "Run-time feature WebRTC-H264WithOpenH264FFmpeg disabled. "
                     "Skipping WebRtcVideoDisplayPerfBrowserTest.MANUAL_"

chrome/browser/media/webrtc/webrtc_video_quality_browsertest.cc

@@ -321,8 +321,14 @@ IN_PROC_BROWSER_TEST_P(WebRtcVideoQualityBrowserTest,
   TestVideoQuality("VP8", false /* prefer_hw_video_codec */);
 }
 
+// Fails consistently on Win7 builders.  crbug.com/993020.
+#if defined(OS_WIN)
+#define MAYBE_MANUAL_TestVideoQualityVp9 DISABLED_MANUAL_TestVideoQualityVp9
+#else
+#define MAYBE_MANUAL_TestVideoQualityVp9 MANUAL_TestVideoQualityVp9
+#endif
 IN_PROC_BROWSER_TEST_P(WebRtcVideoQualityBrowserTest,
-                       MANUAL_TestVideoQualityVp9) {
+                       MAYBE_MANUAL_TestVideoQualityVp9) {
   base::ScopedAllowBlockingForTesting allow_blocking;
   TestVideoQuality("VP9", true /* prefer_hw_video_codec */);
 }