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

content/browser/renderer_host/render_widget_host_view_mac.mm

 // 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.
 
 #include "content/browser/renderer_host/render_widget_host_view_mac.h"
 
 #import <objc/runtime.h>
 #include <OpenGL/gl.h>
 #include <QuartzCore/QuartzCore.h>
 
@@ skipping 40 matching lines @@
 #include "content/common/webplugin_geometry.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/native_web_keyboard_event.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/render_widget_host_view_frame_subscriber.h"
 #import "content/public/browser/render_widget_host_view_mac_delegate.h"
 #include "content/public/browser/user_metrics.h"
 #include "content/public/browser/web_contents.h"
 #include "skia/ext/platform_canvas.h"
-#include "skia/ext/skia_utils_mac.h"
 #include "third_party/WebKit/public/platform/WebScreenInfo.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 #include "third_party/WebKit/public/web/mac/WebInputEventFactory.h"
 #import "third_party/mozilla/ComplexTextInputPanel.h"
 #include "ui/base/cocoa/animation_utils.h"
 #import "ui/base/cocoa/fullscreen_window_manager.h"
 #import "ui/base/cocoa/underlay_opengl_hosting_window.h"
 #include "ui/events/keycodes/keyboard_codes.h"
 #include "ui/base/layout.h"
 #include "ui/compositor/compositor.h"
@@ skipping 459 matching lines @@
       is_loading_(false),
       allow_pause_for_resize_or_repaint_(true),
       weak_factory_(this),
       fullscreen_parent_host_view_(NULL) {
   // |cocoa_view_| owns us and we will be deleted when |cocoa_view_|
   // goes away.  Since we autorelease it, our caller must put
   // |GetNativeView()| into the view hierarchy right after calling us.
   cocoa_view_ = [[[RenderWidgetHostViewCocoa alloc]
                   initWithRenderWidgetHostViewMac:this] autorelease];
 
-  // Paint this view host with |background_color_| when there is no content
-  // ready to draw.
+  // Make this view host a solid white layer when there is no content ready to
+  // draw.
   background_layer_.reset([[CALayer alloc] init]);
   [background_layer_
-      setBackgroundColor:gfx::CGColorCreateFromSkColor(background_color_)];
+      setBackgroundColor:CGColorGetConstantColor(kCGColorWhite)];
   [cocoa_view_ setLayer:background_layer_];
   [cocoa_view_ setWantsLayer:YES];
 
   if (IsDelegatedRendererEnabled()) {
     root_layer_.reset(new ui::Layer(ui::LAYER_SOLID_COLOR));
     delegated_frame_host_.reset(new DelegatedFrameHost(this));
   }
 
   gfx::Screen::GetScreenFor(cocoa_view_)->AddObserver(this);
 
@@ skipping 966 matching lines @@
         render_widget_host_->GetRoutingID(), GetBoundsInRootWindow(),
         GetViewBounds()));
   }
 }
 
 void RenderWidgetHostViewMac::ShowDefinitionForSelection() {
   RenderWidgetHostViewMacDictionaryHelper helper(this);
   helper.ShowDefinitionForSelection();
 }
 
-void RenderWidgetHostViewMac::SetBackgroundColor(SkColor color) {
-  RenderWidgetHostViewBase::SetBackgroundColor(color);
+void RenderWidgetHostViewMac::SetBackgroundOpaque(bool opaque) {
+  RenderWidgetHostViewBase::SetBackgroundOpaque(opaque);
   if (render_widget_host_)
-    render_widget_host_->SetBackgroundOpaque(GetBackgroundOpaque());
-
-  if (background_layer_) {
-    [background_layer_
-        setBackgroundColor:gfx::CGColorCreateFromSkColor(background_color_)];
-  }
+    render_widget_host_->SetBackgroundOpaque(opaque);
 }
 
 BrowserAccessibilityManager*
     RenderWidgetHostViewMac::CreateBrowserAccessibilityManager(
         BrowserAccessibilityDelegate* delegate) {
   return new BrowserAccessibilityManagerMac(
       cocoa_view_,
       BrowserAccessibilityManagerMac::GetEmptyDocument(),
       delegate);
 }
@@ skipping 1772 matching lines @@
 
 // "-webkit-app-region: drag | no-drag" is implemented on Mac by excluding
 // regions that are not draggable. (See ControlRegionView in
 // native_app_window_cocoa.mm). This requires the render host view to be
 // draggable by default.
 - (BOOL)mouseDownCanMoveWindow {
   return YES;
 }
 
 @end