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

The ViewMsg_SetBackground message currently passes an SkBitmap that
signals if the RenderView should have an opaque background or not. We
can use a bool instead to convey this data.

Rename the ViewMsg_SetBackground to ViewMsg_SetBackgroundOpaque as well
as the Set/GetBackground methods on the various RenderWidget/View
classes.

RenderWidget itself no longer needs to know about the background opaque
changes.

R=kenrb, piman
BUG=362164

Review URL: https://codereview.chromium.org/274453002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@269953 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 1 insertions, 7 deletions

diff --git a/apps/ui/views/native_app_window_views.cc b/apps/ui/views/native_app_window_views.cc
index 22c384e..7784cca 100644
--- a/apps/ui/views/native_app_window_views.cc
+++ b/apps/ui/views/native_app_window_views.cc
@@ -262,15 +262,9 @@ void NativeAppWindowViews::OnWidgetActivationChanged(views::Widget* widget,
 void NativeAppWindowViews::RenderViewCreated(
     content::RenderViewHost* render_view_host) {
   if (transparent_background_) {
-    // Use a background with transparency to trigger transparency in Webkit.
-    SkBitmap background;
-    background.setConfig(SkBitmap::kARGB_8888_Config, 1, 1);
-    background.allocPixels();
-    background.eraseARGB(0x00, 0x00, 0x00, 0x00);
-
     content::RenderWidgetHostView* view = render_view_host->GetView();
     DCHECK(view);
-    view->SetBackground(background);
+    view->SetBackgroundOpaque(false);
   }
 }