Mouse lock implementation, including the renderer side and the Windows version of the browser side.

webkit/plugins/ppapi/ppapi_plugin_instance.cc

Index: webkit/plugins/ppapi/ppapi_plugin_instance.cc
diff --git a/webkit/plugins/ppapi/ppapi_plugin_instance.cc b/webkit/plugins/ppapi/ppapi_plugin_instance.cc
index b18df2c3d8f05c7a8d126a400978df8bc4d22047..27307fa8b1e78d9d0582167d80d5cd06fac35b98 100644
--- a/webkit/plugins/ppapi/ppapi_plugin_instance.cc
+++ b/webkit/plugins/ppapi/ppapi_plugin_instance.cc
@@ -1520,20 +1520,15 @@ int32_t PluginInstance::LockMouse(PP_Instance instance,
   if (lock_mouse_callback_.func)
     return PP_ERROR_INPROGRESS;
 
-  // TODO(yzshen): Uncomment the following lines after adding implementation in
-  // the delegate.
-  // lock_mouse_callback_ = callback;
+  lock_mouse_callback_ = callback;
   // We will be notified on completion via OnLockMouseACK(), either
   // synchronously or asynchronously.
-  // delegate()->LockMouse(this);
-  // return PP_OK_COMPLETIONPENDING;
-  return PP_ERROR_FAILED;
+  delegate()->LockMouse(this);
+  return PP_OK_COMPLETIONPENDING;
 }
 
 void PluginInstance::UnlockMouse(PP_Instance instance) {
-  // TODO(yzshen): Uncomment the following after adding implementation in the
-  // delegate.
-  // delegate()->UnlockMouse(this);
+  delegate()->UnlockMouse(this);
 }
 
 void PluginInstance::SubscribeToPolicyUpdates(PP_Instance instance) {