Reland "Add base::TimeDelta::Max()"

cc/debug/rasterize_and_record_benchmark.cc

 // 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.
 
 #include "cc/debug/rasterize_and_record_benchmark.h"
 
 #include <algorithm>
 #include <limits>
 
 #include "base/basictypes.h"
@@ skipping 90 matching lines @@
 
   SkTileGridPicture::TileGridInfo tile_grid_info;
   PicturePileBase::ComputeTileGridInfo(tile_grid_size, &tile_grid_info);
 
   gfx::Rect visible_content_rect = gfx::ScaleToEnclosingRect(
       layer->visible_content_rect(), 1.f / layer->contents_scale_x());
   if (visible_content_rect.IsEmpty())
     return;
 
 
-  base::TimeDelta min_time =
-      base::TimeDelta::FromInternalValue(std::numeric_limits<int64>::max());
+  base::TimeDelta min_time = base::TimeDelta::Max();
   for (int i = 0; i < record_repeat_count_; ++i) {
     base::TimeTicks start = Now();
     scoped_refptr<Picture> picture = Picture::Create(
         visible_content_rect, painter, tile_grid_info, false, 0);
     base::TimeTicks end = Now();
     base::TimeDelta duration = end - start;
     if (duration < min_time)
       min_time = duration;
   }
 
   record_results_.pixels_recorded +=
       visible_content_rect.width() * visible_content_rect.height();
   record_results_.total_best_time += min_time;
 }
 
 RasterizeAndRecordBenchmark::RecordResults::RecordResults()
     : pixels_recorded(0) {}
 
 RasterizeAndRecordBenchmark::RecordResults::~RecordResults() {}
 
 }  // namespace cc