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

ppapi/cpp/private/find_private.h

 // Copyright 2014 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_CPP_PRIVATE_FIND_PRIVATE_H_
 #define PPAPI_CPP_PRIVATE_FIND_PRIVATE_H_
 
 #include <string>
+#include <vector>
 
 #include "ppapi/c/private/ppp_find_private.h"
 #include "ppapi/cpp/instance_handle.h"
 
 namespace pp {
 
 class Instance;
+class Rect;
 
 // This class allows you to associate the PPP_Find and PPB_Find C-based
 // interfaces with an object. It associates itself with the given instance, and
 // registers as the global handler for handling the PPP_Find interface that the
 // browser calls.
 //
 // You would typically use this either via inheritance on your instance:
 //   class MyInstance : public pp::Instance, public pp::Find_Private {
 //     class MyInstance() : pp::Find_Private(this) {
 //     }
@@ skipping 20 matching lines @@
   // PPP_Find_Private functions exposed as virtual functions for you to
   // override.
   virtual bool StartFind(const std::string& text, bool case_sensitive) = 0;
   virtual void SelectFindResult(bool forward) = 0;
   virtual void StopFind() = 0;
 
   // PPB_Find_Private functions for you to call to report find results.
   void SetPluginToHandleFindRequests();
   void NumberOfFindResultsChanged(int32_t total, bool final_result);
   void SelectedFindResultChanged(int32_t index);
+  void SetTickmarks(const std::vector<pp::Rect>& tickmarks);
 
  private:
   InstanceHandle associated_instance_;
 };
 
 }  // namespace pp
 
 #endif  // PPAPI_CPP_PRIVATE_FIND_PRIVATE_H_