[cc] Rename all cc/ filenames to Chromium style

cc/content_layer_client.h

Index: cc/content_layer_client.h
diff --git a/cc/content_layer_client.h b/cc/content_layer_client.h
index 638cbb270ce9b24689d5095baf174ade4f4d1a13..54a92673def9aa5aca4d744691a2e15a215a5e7f 100644
--- a/cc/content_layer_client.h
+++ b/cc/content_layer_client.h
@@ -1,3 +1,24 @@
 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
+
+#ifndef ContentLayerChromiumClient_h
+#define ContentLayerChromiumClient_h
+
+class SkCanvas;
+
+namespace cc {
+class FloatRect;
+class IntRect;
+
+class ContentLayerChromiumClient {
+public:
+    virtual void paintContents(SkCanvas*, const IntRect& clip, FloatRect& opaque) = 0;
+
+protected:
+    virtual ~ContentLayerChromiumClient() { }
+};
+
+}
+
+#endif // ContentLayerChromiumClient_h