refactoring mouse lock to support pepper and WebKit

ppapi/examples/mouse_lock/mouse_lock.cc

 // Copyright (c) 2011 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 <cmath>
 #include <stdarg.h>
 #include <stdio.h>
 
 #include "ppapi/c/dev/ppb_console_dev.h"
 #include "ppapi/c/ppb_input_event.h"
@@ skipping 91 matching lines @@
     if (mouse_locked_) {
       mouse_locked_ = false;
       Paint();
     } else {
       PP_NOTREACHED();
     }
   }
 
  private:
   void DidLockMouse(int32_t result) {
+    fprintf(stderr, "DidLockMouse(result= %d) mouse_locked_==%d\n", result, result == PP_OK);
     mouse_locked_ = result == PP_OK;
     mouse_movement_.set_x(0);
     mouse_movement_.set_y(0);
     Paint();
   }
 
   void DidFlush(int32_t result) {
     waiting_for_flush_completion_ = false;
     if (pending_paint_) {
       pending_paint_ = false;
@@ skipping 142 matching lines @@
 
 namespace pp {
 
 // Factory function for your specialization of the Module object.
 Module* CreateModule() {
   return new MyModule();
 }
 
 }  // namespace pp