cc: Rename cc classes and members to match filenames

cc/content_layer_client.h

 // 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 {
+class ContentLayerClient {
 public:
     virtual void paintContents(SkCanvas*, const IntRect& clip, FloatRect& opaque) = 0;
 
 protected:
-    virtual ~ContentLayerChromiumClient() { }
+    virtual ~ContentLayerClient() { }
 };
 
 }
 
 #endif // ContentLayerChromiumClient_h