gfx: Make conversions from Size to SizeF be explicit.

content/renderer/child_frame_compositing_helper.cc

 // Copyright 2014 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/renderer/child_frame_compositing_helper.h"
 
 #include "cc/blink/web_layer_impl.h"
 #include "cc/layers/delegated_frame_provider.h"
 #include "cc/layers/delegated_frame_resource_collection.h"
 #include "cc/layers/delegated_renderer_layer.h"
@@ skipping 143 matching lines @@
 
 void ChildFrameCompositingHelper::CheckSizeAndAdjustLayerProperties(
     const gfx::Size& new_size,
     float device_scale_factor,
     cc::Layer* layer) {
   if (buffer_size_ != new_size) {
     buffer_size_ = new_size;
     // The container size is in DIP, so is the layer size.
     // Buffer size is in physical pixels, so we need to adjust
     // it by the device scale factor.
-    gfx::Size device_scale_adjusted_size = gfx::ToFlooredSize(
-        gfx::ScaleSize(buffer_size_, 1.0f / device_scale_factor));
+    gfx::Size device_scale_adjusted_size =
+        gfx::ScaleToFlooredSize(buffer_size_, 1.0f / device_scale_factor);
     layer->SetBounds(device_scale_adjusted_size);
   }
 
   // Manually manage background layer for transparent webview.
   if (!opaque_)
     background_layer_->SetIsDrawable(false);
 }
 
 void ChildFrameCompositingHelper::OnContainerDestroy() {
   // If we have a pending ACK, then ACK now so we don't lose frames in the
@@ skipping 218 matching lines @@
 
 void ChildFrameCompositingHelper::SetContentsOpaque(bool opaque) {
   opaque_ = opaque;
   if (delegated_layer_.get())
     delegated_layer_->SetContentsOpaque(opaque_);
   if (surface_layer_.get())
     surface_layer_->SetContentsOpaque(opaque_);
 }
 
 }  // namespace content