Add a PPB_Find_Private function to set the tickmarks on the page.

ppapi/thunk/ppb_instance_api.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.
 
 #ifndef PPAPI_THUNK_INSTANCE_API_H_
 #define PPAPI_THUNK_INSTANCE_API_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "ppapi/c/dev/ppb_url_util_dev.h"
@@ skipping 66 matching lines @@
                              PP_Var source,
                              PP_Var value) = 0;
 
   // Find.
   virtual void SetPluginToHandleFindRequests(PP_Instance instance) = 0;
   virtual void NumberOfFindResultsChanged(PP_Instance instance,
                                           int32_t total,
                                           PP_Bool final_result) = 0;
   virtual void SelectedFindResultChanged(PP_Instance instance,
                                          int32_t index) = 0;
+  virtual void SetTickmarks(PP_Instance instance,
+                            const PP_Rect* tickmarks,
+                            uint32_t count) = 0;
 
   // Fullscreen.
   virtual PP_Bool IsFullscreen(PP_Instance instance) = 0;
   virtual PP_Bool SetFullscreen(PP_Instance instance,
                                 PP_Bool fullscreen) = 0;
   virtual PP_Bool GetScreenSize(PP_Instance instance, PP_Size* size) = 0;
 
   // This is an implementation-only function which grabs an instance of a
   // "singleton resource". These are used to implement instance interfaces
   // (functions which are associated with the instance itself as opposed to a
@@ skipping 93 matching lines @@
                                       PP_URLComponents_Dev* components) = 0;
 #endif  // !defined(OS_NACL)
 
   static const ApiID kApiID = API_ID_PPB_INSTANCE;
 };
 
 }  // namespace thunk
 }  // namespace ppapi
 
 #endif  // PPAPI_THUNK_INSTANCE_API_H_