Implement find in page support for top level BrowserPlugins.

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 2434 matching lines @@
   return id;
 }
 
 bool WebContentsImpl::IsSubframe() const {
   return is_subframe_;
 }
 
 void WebContentsImpl::Find(int request_id,
                            const base::string16& search_text,
                            const blink::WebFindOptions& options) {
+  // See if a top level browser plugin handles the find request first.
+  if (browser_plugin_embedder_ &&
+      browser_plugin_embedder_->Find(request_id, search_text, options)) {
+    return;
+  }
   Send(new ViewMsg_Find(GetRoutingID(), request_id, search_text, options));
 }
 
 void WebContentsImpl::StopFinding(StopFindAction action) {
   Send(new ViewMsg_StopFinding(GetRoutingID(), action));
 }
 
 void WebContentsImpl::InsertCSS(const std::string& css) {
   GetMainFrame()->Send(new FrameMsg_CSSInsertRequest(
       GetMainFrame()->GetRoutingID(), css));
@@ skipping 1908 matching lines @@
   node->render_manager()->ResumeResponseDeferredAtStart();
 }
 
 void WebContentsImpl::SetForceDisableOverscrollContent(bool force_disable) {
   force_disable_overscroll_content_ = force_disable;
   if (view_)
     view_->SetOverscrollControllerEnabled(CanOverscrollContent());
 }
 
 }  // namespace content