Revert of "Converted LayerImpl::bounds() to return SizeF."

cc/trees/tree_synchronizer_unittest.cc

 // Copyright 2011 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/trees/tree_synchronizer.h"
 
 #include <algorithm>
 #include <set>
 #include <vector>
 
@@ skipping 343 matching lines @@
 
   // Check that the property values we set on the Layer tree are reflected in
   // the LayerImpl tree.
   gfx::PointF root_layer_impl_position = layer_impl_tree_root->position();
   EXPECT_EQ(root_position.x(), root_layer_impl_position.x());
   EXPECT_EQ(root_position.y(), root_layer_impl_position.y());
 
   EXPECT_EQ(first_child_opacity,
             layer_impl_tree_root->children()[0]->opacity());
 
-  gfx::SizeF second_layer_impl_child_bounds =
+  gfx::Size second_layer_impl_child_bounds =
       layer_impl_tree_root->children()[1]->bounds();
   EXPECT_EQ(second_child_bounds.width(),
             second_layer_impl_child_bounds.width());
   EXPECT_EQ(second_child_bounds.height(),
             second_layer_impl_child_bounds.height());
 }
 
 TEST_F(TreeSynchronizerTest, ReuseLayerImplsAfterStructuralChange) {
   std::vector<int> layer_impl_destruction_list;
 
@@ skipping 376 matching lines @@
                           host_impl->active_tree());
 
   // The clip children should have been unhooked.
   EXPECT_EQ(2u, intervening->children().size());
   EXPECT_FALSE(clip_child2->clip_parent());
   EXPECT_FALSE(additional_clip_child->clip_parent());
 }
 
 }  // namespace
 }  // namespace cc