<webview>: Support zoom in WebUI

content/browser/web_contents/web_contents_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/browser/web_contents/web_contents_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 2114 matching lines @@
   RenderViewHost* host = GetRenderViewHost();
   int id = StartDownload(host, url, is_favicon, max_bitmap_size);
   image_download_map_[id] = callback;
   return id;
 }
 
 bool WebContentsImpl::IsSubframe() const {
   return is_subframe_;
 }
 
+void WebContentsImpl::SetZoomLevel(double level) {
+  Send(new ViewMsg_SetZoomLevel(GetRoutingID(), level));
+  BrowserPluginEmbedder* embedder = GetBrowserPluginEmbedder();
+  if (embedder)
+    embedder->SetZoomLevel(level);
+}
+
 void WebContentsImpl::Find(int request_id,
                            const base::string16& search_text,
                            const blink::WebFindOptions& options) {
   Send(new ViewMsg_Find(GetRoutingID(), request_id, search_text, options));
 }
 
 void WebContentsImpl::StopFinding(StopFindAction action) {
   Send(new ViewMsg_StopFinding(GetRoutingID(), action));
 }
 
@@ skipping 1718 matching lines @@
 }
 
 void WebContentsImpl::OnFrameRemoved(
     RenderViewHostImpl* render_view_host,
     int64 frame_id) {
    FOR_EACH_OBSERVER(WebContentsObserver, observers_,
                      FrameDetached(render_view_host, frame_id));
 }
 
 }  // namespace content