Switch to standard integer types in cc/.

cc/base/histograms.h

 // Copyright 2015 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 CC_BASE_HISTOGRAMS_H_
 #define CC_BASE_HISTOGRAMS_H_
 
 #include "base/compiler_specific.h"
+#include "base/macros.h"
 #include "base/metrics/histogram_base.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/numerics/safe_math.h"
 #include "base/strings/stringprintf.h"
 #include "base/time/time.h"
 #include "base/timer/elapsed_timer.h"
 #include "cc/base/cc_export.h"
 
 namespace cc {
 
@@ skipping 73 matching lines @@
   base::ElapsedTimer timer_;
   base::CheckedNumeric<int> area_;
 
   friend class ScopedUMAHistogramAreaTimerBaseTest;
   DISALLOW_COPY_AND_ASSIGN(ScopedUMAHistogramAreaTimerBase);
 };
 
 }  // namespace cc
 
 #endif  // CC_BASE_HISTOGRAMS_H_