Implement find in page support for top level BrowserPlugins.

content/browser/browser_plugin/browser_plugin_embedder.h

 // 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.
 
 // A BrowserPluginEmbedder handles messages coming from a BrowserPlugin's
 // embedder that are not directed at any particular existing guest process.
 // In the beginning, when a BrowserPlugin instance in the embedder renderer
 // process requests an initial navigation, the WebContents for that renderer
 // renderer creates a BrowserPluginEmbedder for itself. The
 // BrowserPluginEmbedder, in turn, forwards the requests to a
@@ skipping 52 matching lines @@
 
   void StartDrag(BrowserPluginGuest* guest);
 
   // Sends EndSystemDrag message to the guest that initiated the last drag/drop
   // operation, if there's any.
   void SystemDragEnded();
 
   // Used to handle special keyboard events.
   bool HandleKeyboardEvent(const NativeWebKeyboardEvent& event);
 
+  // Find the given |search_text| in the page. Returns true if the find request
+  // is handled by this browser plugin embedder.
+  bool Find(int request_id,
+            const base::string16& search_text,
+            const blink::WebFindOptions& options);
+
  private:
   explicit BrowserPluginEmbedder(WebContentsImpl* web_contents);
 
   BrowserPluginGuestManager* GetBrowserPluginGuestManager() const;
 
   void ClearGuestDragStateIfApplicable();
 
   bool DidSendScreenRectsCallback(WebContents* guest_web_contents);
 
-  bool SetZoomLevelCallback(double level, WebContents* guest_web_contents);
+  bool UnlockMouseIfNecessaryCallback(bool* mouse_unlocked, WebContents* guest);
 
-  bool UnlockMouseIfNecessaryCallback(bool* mouse_unlocked, WebContents* guest);
+  bool FindInGuest(int request_id,
+                   const base::string16& search_text,
+                   const blink::WebFindOptions& options,
+                   WebContents* guest);
 
   // Message handlers.
   void OnAttach(int instance_id,
                 const BrowserPluginHostMsg_Attach_Params& params);
   void OnPluginAtPositionResponse(int instance_id,
                                   int request_id,
                                   const gfx::Point& position);
 
   // Used to correctly update the cursor when dragging over a guest, and to
   // handle a race condition when dropping onto the guest that started the drag
@@ skipping 10 matching lines @@
   bool guest_drag_ending_;
 
   base::WeakPtrFactory<BrowserPluginEmbedder> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserPluginEmbedder);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_EMBEDDER_H_