[Merge to M60] Cloning a ui::Layer should also clone its target temperature

ui/compositor/layer.h

 // Copyright (c) 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.
 
 #ifndef UI_COMPOSITOR_LAYER_H_
 #define UI_COMPOSITOR_LAYER_H_
 
 #include <stddef.h>
 
 #include <memory>
@@ skipping 173 matching lines @@
 
   // Returns the actual opacity, which the opacity of this layer multipled by
   // the combined opacity of the parent.
   float GetCombinedOpacity() const;
 
   // The layer temperature value between 0.0f and 1.0f, where a value of 0.0f
   // is least warm (which is the default), and a value of 1.0f is most warm.
   float layer_temperature() const { return layer_temperature_; }
   void SetLayerTemperature(float value);
 
+  // Returns the target color temperature if animator is running, or the current
+  // temperature otherwise.
+  float GetTargetTemperature() const;
+
   // Blur pixels by this amount in anything below the layer and visible through
   // the layer.
   int background_blur() const { return background_blur_radius_; }
   void SetBackgroundBlur(int blur_radius);
 
   // Saturate all pixels of this layer by this amount.
   // This effect will get "combined" with the inverted,
   // brightness and grayscale setting.
   float layer_saturation() const { return layer_saturation_; }
   void SetLayerSaturation(float saturation);
@@ skipping 364 matching lines @@
   // The size of the frame or texture in DIP, set when SetShowDelegatedContent
   // or SetTextureMailbox was called.
   gfx::Size frame_size_in_dip_;
 
   DISALLOW_COPY_AND_ASSIGN(Layer);
 };
 
 }  // namespace ui
 
 #endif  // UI_COMPOSITOR_LAYER_H_