cc: Fix header include guards of our header files.

cc/page_scale_animation.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 CCPageScaleAnimation_h
-#define CCPageScaleAnimation_h
+#ifndef CC_PAGE_SCALE_ANIMATION_H_
+#define CC_PAGE_SCALE_ANIMATION_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "IntSize.h"
 
 namespace cc {
 
 // A small helper class that does the math for zoom animations, primarily for
 // double-tap zoom. Initialize it with starting and ending scroll/page scale
 // positions and an animation length time, then call ...AtTime() at every frame
 // to obtain the current interpolated position.
@@ skipping 48 matching lines @@
     IntSize m_anchor;
     IntSize m_scrollEnd;
     float m_pageScaleEnd;
 
     double m_startTime;
     double m_duration;
 };
 
 }  // namespace cc
 
-#endif
+#endif  // CC_PAGE_SCALE_ANIMATION_H_