cc: Fix build issues for adding ‘chromium_code’: 1 to cc.gyp and cc_tests.gyp

cc/resources/picture_layer_tiling_set.cc

 // Copyright 2012 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/resources/picture_layer_tiling_set.h"
 
+#include <limits>
+
 namespace cc {
 
 namespace {
 
 class LargestToSmallestScaleFunctor {
  public:
   bool operator() (PictureLayerTiling* left, PictureLayerTiling* right) {
     return left->contents_scale() > right->contents_scale();
   }
 };
@@ skipping 109 matching lines @@
        static_cast<size_t>(ideal_tiling_) < set_->tilings_.size();
        ++ideal_tiling_) {
     PictureLayerTiling* tiling = set_->tilings_[ideal_tiling_];
     if (tiling->contents_scale() < ideal_contents_scale_) {
       if (ideal_tiling_ > 0)
         ideal_tiling_--;
       break;
     }
   }
 
-  if (ideal_tiling_ == set_->tilings_.size() && ideal_tiling_ > 0)
+  DCHECK_LE(set_->tilings_.size(),
+            static_cast<size_t>(std::numeric_limits<int>::max()));
+
+  int num_tilings = set_->tilings_.size();
+  if (ideal_tiling_ == num_tilings && ideal_tiling_ > 0)
     ideal_tiling_--;
 
   ++(*this);
 }
 
 PictureLayerTilingSet::Iterator::~Iterator() {
 }
 
 gfx::Rect PictureLayerTilingSet::Iterator::geometry_rect() const {
   if (!tiling_iter_) {
@@ skipping 157 matching lines @@
 }
 
 scoped_ptr<base::Value> PictureLayerTilingSet::AsValue() const {
   scoped_ptr<base::ListValue> state(new base::ListValue());
   for (size_t i = 0; i < tilings_.size(); ++i)
     state->Append(tilings_[i]->AsValue().release());
   return state.PassAs<base::Value>();
 }
 
 }  // namespace cc