[cc] Rename all cc/ filenames to Chromium style

cc/heads_up_display_layer_impl.h

Index: cc/heads_up_display_layer_impl.h
diff --git a/cc/heads_up_display_layer_impl.h b/cc/heads_up_display_layer_impl.h
index 638cbb270ce9b24689d5095baf174ade4f4d1a13..47e7cfe73e4252314394e1eed42dfdc6fbcc275f 100644
--- a/cc/heads_up_display_layer_impl.h
+++ b/cc/heads_up_display_layer_impl.h
@@ -1,3 +1,57 @@
 // 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 CCHeadsUpDisplayLayerImpl_h
+#define CCHeadsUpDisplayLayerImpl_h
+
+#include "base/memory/scoped_ptr.h"
+#include "CCFontAtlas.h"
+#include "CCLayerImpl.h"
+#include "CCScopedTexture.h"
+
+class SkCanvas;
+
+namespace cc {
+
+class CCDebugRectHistory;
+class CCFontAtlas;
+class CCFrameRateCounter;
+
+class CCHeadsUpDisplayLayerImpl : public CCLayerImpl {
+public:
+    static scoped_ptr<CCHeadsUpDisplayLayerImpl> create(int id)
+    {
+        return make_scoped_ptr(new CCHeadsUpDisplayLayerImpl(id));
+    }
+    virtual ~CCHeadsUpDisplayLayerImpl();
+
+    void setFontAtlas(scoped_ptr<CCFontAtlas>);
+
+    virtual void willDraw(CCResourceProvider*) OVERRIDE;
+    virtual void appendQuads(CCQuadSink&, CCAppendQuadsData&) OVERRIDE;
+    void updateHudTexture(CCResourceProvider*);
+    virtual void didDraw(CCResourceProvider*) OVERRIDE;
+
+    virtual void didLoseContext() OVERRIDE;
+
+    virtual bool layerIsAlwaysDamaged() const OVERRIDE;
+
+private:
+    explicit CCHeadsUpDisplayLayerImpl(int);
+
+    virtual const char* layerTypeAsString() const OVERRIDE;
+
+    void drawHudContents(SkCanvas*);
+    void drawFPSCounter(SkCanvas*, CCFrameRateCounter*, int top, int height);
+    void drawFPSCounterText(SkCanvas*, CCFrameRateCounter*, int top, int width, int height);
+    void drawDebugRects(SkCanvas*, CCDebugRectHistory*);
+
+    scoped_ptr<CCFontAtlas> m_fontAtlas;
+    OwnPtr<CCScopedTexture> m_hudTexture;
+    OwnPtr<SkCanvas> m_hudCanvas;
+};
+
+}  // namespace cc
+
+#endif // CCHeadsUpDisplayLayerImpl_h