Disable failing test after WebKit roll.

chrome/test/gpu/gpu_feature_browsertest.cc

Index: chrome/test/gpu/gpu_feature_browsertest.cc
diff --git a/chrome/test/gpu/gpu_feature_browsertest.cc b/chrome/test/gpu/gpu_feature_browsertest.cc
index 9b7726dc644cce2bd9fc56b6eabd8d44bdd140ee..a761214a90a60c0062ee163d4da4fd2baf528a92 100644
--- a/chrome/test/gpu/gpu_feature_browsertest.cc
+++ b/chrome/test/gpu/gpu_feature_browsertest.cc
@@ -392,7 +392,8 @@ class ThreadedCompositorTest : public GpuFeatureTest {
   }
 };
 
-IN_PROC_BROWSER_TEST_F(ThreadedCompositorTest, ThreadedCompositor) {
+// disabled in http://crbug.com/123503
+IN_PROC_BROWSER_TEST_F(ThreadedCompositorTest, DISABLED_ThreadedCompositor) {
   const FilePath url(FILE_PATH_LITERAL("feature_compositing.html"));
   RunTest(url, EXPECT_GPU_SWAP_BUFFERS);
 }