Un-mark UILayoutTests as flaky

UI Layout tests are not flaky, so delete the FLAKY label from
linux and windows.

BUG=56364
TEST=test no longer marked flaky
TBR=scherkus

Review URL: http://codereview.chromium.org/6324010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@72442 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/media_uitest.cc

@@ -66,13 +66,6 @@ class MediaTest : public UITest {
   }
 };
 
-#if defined(OS_LINUX) || defined(OS_WIN)
-// Test appears to be fine on linux, but let's first change to flaky and
-// see how that goes.
-// http://crbug.com/56364
-#define MediaUILayoutTest FLAKY_MediaUILayoutTest
-#endif
-
 TEST_F(MediaTest, VideoBearTheora) {
   PlayVideo("bear.ogv");
 }