[cc] Change cc_tests.gyp filenames to Chromium style

cc/test/CCLayerTestCommon.h

Index: cc/test/CCLayerTestCommon.h
diff --git a/cc/test/CCLayerTestCommon.h b/cc/test/CCLayerTestCommon.h
index 9627ba181690ca96ec07a2d385295174fa307c46..5c7eab2d9d7a483db4d49c4835351d8fdc0b42a1 100644
--- a/cc/test/CCLayerTestCommon.h
+++ b/cc/test/CCLayerTestCommon.h
@@ -2,18 +2,5 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CCLayerTestCommon_h
-#define CCLayerTestCommon_h
-
-#include "CCRenderPass.h"
-#include "IntRect.h"
-#include "Region.h"
-
-namespace CCLayerTestCommon {
-
-extern const char* quadString;
-
-void verifyQuadsExactlyCoverRect(const cc::CCQuadList&, const cc::IntRect&);
-
-} // namespace CCLayerTestCommon
-#endif // CCLayerTestCommon_h
+// Temporary forwarding header
+#include "cc/test/layer_test_common.h"