Use a C++11 feature in a single file, to discover if this works everywhere.

content/browser/gpu/gpu_data_manager_impl_private.cc

 // Copyright (c) 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 "content/browser/gpu/gpu_data_manager_impl_private.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 120 matching lines @@
       UMA_HISTOGRAM_ENUMERATION("GPU.BlacklistTestResultsPerEntry",
           flag_entries[i], max_entry_id + 1);
     }
   }
 
   // This counts how many users are affected by a disabled entry - this allows
   // us to understand the impact of an entry before enable it.
   std::vector<uint32> flag_disabled_entries;
   disabled = true;
   blacklist->GetDecisionEntries(&flag_disabled_entries, disabled);
-  for (size_t i = 0; i < flag_disabled_entries.size(); ++i) {
+  for (uint32 disabled_entry : flag_disabled_entries) {
     UMA_HISTOGRAM_ENUMERATION("GPU.BlacklistTestResultsPerDisabledEntry",
-        flag_disabled_entries[i], max_entry_id + 1);
+        disabled_entry, max_entry_id + 1);
   }
 
   const gpu::GpuFeatureType kGpuFeatures[] = {
       gpu::GPU_FEATURE_TYPE_ACCELERATED_2D_CANVAS,
       gpu::GPU_FEATURE_TYPE_GPU_COMPOSITING, gpu::GPU_FEATURE_TYPE_WEBGL};
   const std::string kGpuBlacklistFeatureHistogramNames[] = {
       "GPU.BlacklistFeatureTestResults.Accelerated2dCanvas",
       "GPU.BlacklistFeatureTestResults.GpuCompositing",
       "GPU.BlacklistFeatureTestResults.Webgl", };
   const bool kGpuFeatureUserFlags[] = {
@@ skipping 914 matching lines @@
 
 void GpuDataManagerImplPrivate::OnGpuProcessInitFailure() {
   gpu_process_accessible_ = false;
   gpu_info_.finalized = true;
   complete_gpu_info_already_requested_ = true;
   // Some observers might be waiting.
   NotifyGpuInfoUpdate();
 }
 
 }  // namespace content