Remove RenderWidgetHost::GetSnapshotFromRenderer.

chrome/browser/thumbnails/thumbnail_tab_helper.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 "chrome/browser/thumbnails/thumbnail_tab_helper.h"
 
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/thumbnails/thumbnail_service.h"
 #include "chrome/browser/thumbnails/thumbnail_service_factory.h"
@@ skipping 57 matching lines @@
   if (!succeeded)
     return;
 
   // On success, we must be on the UI thread (on failure because of shutdown we
   // are not on the UI thread).
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
 
   algorithm->ProcessBitmap(context, base::Bind(&UpdateThumbnail), bitmap);
 }
 
-void GotSnapshotFromRenderer(base::Callback<void(const SkBitmap&)> callback,
-                             bool success,
-                             const SkBitmap& bitmap) {
-  if (success)
-    callback.Run(bitmap);
-}
-
 void AsyncProcessThumbnail(content::WebContents* web_contents,
                            scoped_refptr<ThumbnailingContext> context,
                            scoped_refptr<ThumbnailingAlgorithm> algorithm) {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
   RenderWidgetHost* render_widget_host = web_contents->GetRenderViewHost();
   content::RenderWidgetHostView* view = render_widget_host->GetView();
   if (!view)
     return;
-  if (!view->IsSurfaceAvailableForCopy()) {
-    // On Windows XP and possibly due to driver issues, neither the backing
-    // store nor the compositing surface is available in the browser when
-    // accelerated compositing is active, so ask the renderer to send a snapshot
-    // for creating the thumbnail.
-    render_widget_host->GetSnapshotFromRenderer(
-      gfx::Rect(),
-      base::Bind(GotSnapshotFromRenderer, base::Bind(
-          &ThumbnailingAlgorithm::ProcessBitmap,
-          algorithm, context, base::Bind(&UpdateThumbnail))));
+  if (!view->IsSurfaceAvailableForCopy())
     return;
-  }
 
   gfx::Rect copy_rect = gfx::Rect(view->GetViewBounds().size());
   // Clip the pixels that will commonly hold a scrollbar, which looks bad in
   // thumbnails.
   int scrollbar_size = gfx::scrollbar_size();
   gfx::Size copy_size;
   copy_rect.Inset(0, 0, scrollbar_size, scrollbar_size);
 
   if (copy_rect.IsEmpty())
     return;
@@ skipping 118 matching lines @@
         content::NOTIFICATION_RENDER_WIDGET_VISIBILITY_CHANGED,
         content::Source<RenderWidgetHost>(renderer));
   }
 }
 
 void ThumbnailTabHelper::WidgetHidden(RenderWidgetHost* widget) {
   if (!enabled_)
     return;
   UpdateThumbnailIfNecessary(web_contents());
 }