Revert of Disable failing tests on Mac 10.10 Release (ATI)

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 e0012e7b82e2ccb4fcc73283ff02b059458953fb..7bcba9bbf1563892df370ab6896218fdeed2ffd6 100644
--- a/chrome/browser/extensions/api/tab_capture/tab_capture_apitest.cc
+++ b/chrome/browser/extensions/api/tab_capture/tab_capture_apitest.cc
@@ -174,13 +174,7 @@
 }
 
 // Tests that tab capture video frames can be received in a VIDEO element.
-// Disabled in MacOS: https://crbug.com/557929
-#if defined(OS_MACOSX)
-#define MAYBE_EndToEndWithoutRemoting DISABLED_EndToEndWithoutRemoting
-#else
-#define MAYBE_EndToEndWithoutRemoting EndToEndWithoutRemoting
-#endif
-IN_PROC_BROWSER_TEST_F(TabCaptureApiPixelTest, MAYBE_EndToEndWithoutRemoting) {
+IN_PROC_BROWSER_TEST_F(TabCaptureApiPixelTest, EndToEndWithoutRemoting) {
   if (IsTooIntensiveForThisPlatform()) {
     LOG(WARNING) << "Skipping this CPU-intensive test on this platform/build.";
     return;
@@ -195,13 +189,7 @@
 // received in a VIDEO element.  More allowance is provided for color deviation
 // because of the additional layers of video processing performed within
 // WebRTC.
-// Disabled in MacOS: https://crbug.com/557929
-#if defined(OS_MACOSX)
-#define MAYBE_EndToEndThroughWebRTC DISABLED_EndToEndThroughWebRTC
-#else
-#define MAYBE_EndToEndThroughWebRTC EndToEndThroughWebRTC
-#endif
-IN_PROC_BROWSER_TEST_F(TabCaptureApiPixelTest, MAYBE_EndToEndThroughWebRTC) {
+IN_PROC_BROWSER_TEST_F(TabCaptureApiPixelTest, EndToEndThroughWebRTC) {
   if (IsTooIntensiveForThisPlatform()) {
     LOG(WARNING) << "Skipping this CPU-intensive test on this platform/build.";
     return;