Support chrome app frame colors on ChromeOS.

ash/frame/custom_frame_view_ash.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 ASH_FRAME_CUSTOM_FRAME_VIEW_ASH_H_
 #define ASH_FRAME_CUSTOM_FRAME_VIEW_ASH_H_
 
 #include "ash/ash_export.h"
 #include "base/memory/scoped_ptr.h"
+#include "third_party/skia/include/core/SkColor.h"
 #include "ui/views/window/non_client_view.h"
 
 namespace ash {
 class FrameBorderHitTestController;
 class FrameCaptionButtonContainerView;
 class ImmersiveFullscreenController;
 }
 namespace views {
 class Widget;
 }
@@ skipping 14 matching lines @@
   explicit CustomFrameViewAsh(views::Widget* frame);
   virtual ~CustomFrameViewAsh();
 
   // Inits |immersive_fullscreen_controller| so that the controller reveals
   // and hides |header_view_| in immersive fullscreen.
   // CustomFrameViewAsh does not take ownership of
   // |immersive_fullscreen_controller|.
   void InitImmersiveFullscreenControllerForView(
       ImmersiveFullscreenController* immersive_fullscreen_controller);
 
+  // Sets the active and inactive frame colors. Note the inactive frame color
+  // will have some transparency added when the frame is drawn.
+  void SetFrameColors(SkColor active_frame_color, SkColor inactive_frame_color);
+
   // views::NonClientFrameView:
   virtual gfx::Rect GetBoundsForClientView() const override;
   virtual gfx::Rect GetWindowBoundsForClientBounds(
       const gfx::Rect& client_bounds) const override;
   virtual int NonClientHitTest(const gfx::Point& point) override;
   virtual void GetWindowMask(const gfx::Size& size,
                              gfx::Path* window_mask) override;
   virtual void ResetWindowControls() override;
   virtual void UpdateWindowIcon() override;
   virtual void UpdateWindowTitle() override;
@@ skipping 37 matching lines @@
 
   // Updates the hittest bounds overrides based on the window state type.
   scoped_ptr<FrameBorderHitTestController> frame_border_hit_test_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(CustomFrameViewAsh);
 };
 
 }  // namespace ash
 
 #endif  // ASH_FRAME_CUSTOM_FRAME_VIEW_ASH_H_