cc: Fix header include guards of our header files.

cc/managed_memory_policy.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 managed_memory_policy_h
-#define managed_memory_policy_h
+#ifndef CC_MANAGED_MEMORY_POLICY_H_
+#define CC_MANAGED_MEMORY_POLICY_H_
 
 #include "base/basictypes.h"
 #include "cc/cc_export.h"
 
 namespace cc {
 
 struct CC_EXPORT ManagedMemoryPolicy {
     ManagedMemoryPolicy(size_t bytesLimitWhenVisible);
     ManagedMemoryPolicy(size_t bytesLimitWhenVisible,
                         int priorityCutoffWhenVisible,
                         size_t bytesLimitWhenNotVisible,
                         int priorityCutoffWhenNotVisible);
     bool operator==(const ManagedMemoryPolicy&) const;
     bool operator!=(const ManagedMemoryPolicy&) const;
 
     size_t bytesLimitWhenVisible;
     int priorityCutoffWhenVisible;
     size_t bytesLimitWhenNotVisible;
     int priorityCutoffWhenNotVisible;
 };
 
 }  // namespace cc
 
-#endif
+#endif  // CC_MANAGED_MEMORY_POLICY_H_