Disable tabCapture API tests on Windows. Seem to be broken since a libjingle roll.

chrome/browser/extensions/api/tab_capture/tab_capture_apitest.cc

Index: chrome/browser/extensions/api/tab_capture/tab_capture_apitest.cc
diff --git a/chrome/browser/extensions/api/tab_capture/tab_capture_apitest.cc b/chrome/browser/extensions/api/tab_capture/tab_capture_apitest.cc
index 490abfd65cc5d4c057682508ed7879763b247801..df164027c255df9bf0d8a2c6c890b8e8dfb10fd3 100644
--- a/chrome/browser/extensions/api/tab_capture/tab_capture_apitest.cc
+++ b/chrome/browser/extensions/api/tab_capture/tab_capture_apitest.cc
@@ -48,6 +48,9 @@ class TabCaptureApiTest : public ExtensionApiTest {
 // http://crbug.com/261493 and http://crbug.com/268644
 #if defined(OS_LINUX) || defined(OS_CHROMEOS) || defined(USE_AURA)
 #define MAYBE_ApiTests DISABLED_ApiTests
+#elif defined(OS_WIN)
+// http://crbug.com/263951
+#define MAYBE_ApiTests DISABLED_ApiTests
 #else
 #define MAYBE_ApiTests ApiTests
 #endif
@@ -73,6 +76,9 @@ IN_PROC_BROWSER_TEST_F(TabCaptureApiTest, MAYBE_ApiTests) {
 // http://crbug.com/268644
 #if defined(USE_AURA)
 #define MAYBE_ApiTestsAudio DISABLED_ApiTestsAudio
+#elif defined(OS_WIN)
+// http://crbug.com/263951
+#define MAYBE_ApiTestsAudio DISABLED_ApiTestsAudio
 #else
 #define MAYBE_ApiTestsAudio ApiTestsAudio
 #endif