Sets the default background color of inline signin and user manager to grey

content/browser/renderer_host/render_widget_host_view_aura.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 CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 136 matching lines @@
   virtual gfx::NativeView GetNativeView() const override;
   virtual gfx::NativeViewId GetNativeViewId() const override;
   virtual gfx::NativeViewAccessible GetNativeViewAccessible() override;
   virtual ui::TextInputClient* GetTextInputClient() override;
   virtual bool HasFocus() const override;
   virtual bool IsSurfaceAvailableForCopy() const override;
   virtual void Show() override;
   virtual void Hide() override;
   virtual bool IsShowing() override;
   virtual gfx::Rect GetViewBounds() const override;
-  virtual void SetBackgroundOpaque(bool opaque) override;
+  virtual void SetBackgroundColor(SkColor color) override;
   virtual gfx::Size GetVisibleViewportSize() const override;
   virtual void SetInsets(const gfx::Insets& insets) override;
 
   // Overridden from RenderWidgetHostViewBase:
   virtual void InitAsPopup(RenderWidgetHostView* parent_host_view,
                            const gfx::Rect& pos) override;
   virtual void InitAsFullscreen(
       RenderWidgetHostView* reference_host_view) override;
   virtual void WasShown() override;
   virtual void WasHidden() override;
@@ skipping 472 matching lines @@
   // view, so we can ensure the window hasn't moved between copying from the
   // compositing surface and showing the disambiguation popup.
   gfx::Vector2dF disambiguation_scroll_offset_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewAura);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_