Switch to standard integer types in cc/.

cc/base/histograms.cc

 // 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.
 
 #include "cc/base/histograms.h"
 
+#include <stdint.h>
+
 #include <algorithm>
 #include <cmath>
 #include <cstring>
 #include <limits>
 
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/numerics/safe_conversions.h"
 #include "base/synchronization/lock.h"
 
@@ skipping 28 matching lines @@
   if (!old_client_name)
     g_client_name = client_name;
 }
 
 const char* GetClientNameForMetrics() {
   base::AutoLock auto_lock(g_client_name_lock.Get());
   return g_client_name;
 }
 
 // Minimum elapsed time of 1us to limit weighting of fast calls.
-static const int64 kMinimumTimeMicroseconds = 1;
+static const int64_t kMinimumTimeMicroseconds = 1;
 
 ScopedUMAHistogramAreaTimerBase::ScopedUMAHistogramAreaTimerBase() : area_(0) {
 }
 
 ScopedUMAHistogramAreaTimerBase::~ScopedUMAHistogramAreaTimerBase() {
 }
 
 bool ScopedUMAHistogramAreaTimerBase::GetHistogramValues(
     Sample* time_microseconds,
     Sample* pixels_per_ms) const {
@@ skipping 14 matching lines @@
   // It is not clear how NaN can get here, but we've gotten crashes from
   // saturated_cast. http://crbug.com/486214
   if (std::isnan(area_per_time))
     return false;
   *time_microseconds = base::saturated_cast<Sample>(elapsed.InMicroseconds());
   *pixels_per_ms = base::saturated_cast<Sample>(area_per_time);
   return true;
 }
 
 }  // namespace cc