cc: Rename cc classes and members to match filenames

cc/layer_painter.h

 // Copyright 2011 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 LayerPainterChromium_h
 #define LayerPainterChromium_h
 
 class SkCanvas;
 
 namespace cc {
 
 class FloatRect;
 class IntRect;
 
-class LayerPainterChromium {
+class LayerPainter {
 public:
-    virtual ~LayerPainterChromium() { }
+    virtual ~LayerPainter() { }
     virtual void paint(SkCanvas*, const IntRect& contentRect, FloatRect& opaque) = 0;
 };
 
 } // namespace cc
 #endif // LayerPainterChromium_h