Remove RenderWidget::SetBackground, change IPC to pass a bool.

content/renderer/render_view_impl.cc

 // 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/renderer/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/auto_reset.h"
@@ skipping 1080 matching lines @@
     IPC_MESSAGE_HANDLER(ViewMsg_UpdateWebPreferences, OnUpdateWebPreferences)
     IPC_MESSAGE_HANDLER(ViewMsg_EnumerateDirectoryResponse,
                         OnEnumerateDirectoryResponse)
     IPC_MESSAGE_HANDLER(ViewMsg_RunFileChooserResponse, OnFileChooserResponse)
     IPC_MESSAGE_HANDLER(ViewMsg_SuppressDialogsUntilSwapOut,
                         OnSuppressDialogsUntilSwapOut)
     IPC_MESSAGE_HANDLER(ViewMsg_ClosePage, OnClosePage)
     IPC_MESSAGE_HANDLER(ViewMsg_ThemeChanged, OnThemeChanged)
     IPC_MESSAGE_HANDLER(ViewMsg_MoveOrResizeStarted, OnMoveOrResizeStarted)
     IPC_MESSAGE_HANDLER(ViewMsg_ClearFocusedElement, OnClearFocusedElement)
-    IPC_MESSAGE_HANDLER(ViewMsg_SetBackground, OnSetBackground)
+    IPC_MESSAGE_HANDLER(ViewMsg_SetBackgroundOpaque, OnSetBackgroundOpaque)
     IPC_MESSAGE_HANDLER(ViewMsg_EnablePreferredSizeChangedMode,
                         OnEnablePreferredSizeChangedMode)
     IPC_MESSAGE_HANDLER(ViewMsg_EnableAutoResize, OnEnableAutoResize)
     IPC_MESSAGE_HANDLER(ViewMsg_DisableAutoResize, OnDisableAutoResize)
     IPC_MESSAGE_HANDLER(ViewMsg_DisableScrollbarsForSmallWindows,
                         OnDisableScrollbarsForSmallWindows)
     IPC_MESSAGE_HANDLER(ViewMsg_SetRendererPrefs, OnSetRendererPrefs)
     IPC_MESSAGE_HANDLER(ViewMsg_MediaPlayerActionAt, OnMediaPlayerActionAt)
     IPC_MESSAGE_HANDLER(ViewMsg_PluginActionAt, OnPluginActionAt)
     IPC_MESSAGE_HANDLER(ViewMsg_SetActive, OnSetActive)
@@ skipping 2070 matching lines @@
 gfx::Vector2d RenderViewImpl::GetScrollOffset() {
   WebSize scroll_offset = webview()->mainFrame()->scrollOffset();
   return gfx::Vector2d(scroll_offset.width, scroll_offset.height);
 }
 
 void RenderViewImpl::OnClearFocusedElement() {
   if (webview())
     webview()->clearFocusedElement();
 }
 
-void RenderViewImpl::OnSetBackground(const SkBitmap& background) {
+void RenderViewImpl::OnSetBackgroundOpaque(bool opaque) {
   if (webview())
-    webview()->setIsTransparent(!background.empty());
+    webview()->setIsTransparent(!opaque);
   if (compositor_)
-    compositor_->setHasTransparentBackground(!background.empty());
-
-  SetBackground(background);
+    compositor_->setHasTransparentBackground(!opaque);
 }
 
 void RenderViewImpl::OnSetAccessibilityMode(AccessibilityMode new_mode) {
   if (accessibility_mode_ == new_mode)
     return;
   accessibility_mode_ = new_mode;
   if (renderer_accessibility_) {
     delete renderer_accessibility_;
     renderer_accessibility_ = NULL;
   }
@@ skipping 856 matching lines @@
     std::vector<gfx::Size> sizes;
     ConvertToFaviconSizes(icon_urls[i].sizes(), &sizes);
     if (!url.isEmpty())
       urls.push_back(
           FaviconURL(url, ToFaviconType(icon_urls[i].iconType()), sizes));
   }
   SendUpdateFaviconURL(urls);
 }
 
 }  // namespace content