Use a direct include of time headers in content/, part 1.

content/browser/download/rate_estimator.h

 // Copyright 2013 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 CONTENT_BROWSER_DOWNLOAD_RATE_ESTIMATOR_H_
 #define CONTENT_BROWSER_DOWNLOAD_RATE_ESTIMATOR_H_
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
-#include "base/time.h"
+#include "base/time/time.h"
 #include "content/common/content_export.h"
 
 namespace content {
 
 // RateEstimator generates rate estimates based on recent activity.
 //
 // Internally it uses a fixed-size ring buffer, and develops estimates
 // based on a small sliding window of activity.
 class CONTENT_EXPORT RateEstimator {
  public:
@@ skipping 20 matching lines @@
   std::vector<uint32> history_;
   base::TimeDelta bucket_time_;
   size_t oldest_index_;
   size_t bucket_count_;
   base::TimeTicks oldest_time_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DOWNLOAD_RATE_ESTIMATOR_H_