Fix the file chooser host unittest.

content/renderer/pepper/mock_renderer_ppapi_host.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 CONTENT_RENDERER_PEPPER_MOCK_RENDERER_PPAPI_HOST_H_
 #define CONTENT_RENDERER_PEPPER_MOCK_RENDERER_PPAPI_HOST_H_
 
 #include "base/basictypes.h"
 #include "content/public/renderer/renderer_ppapi_host.h"
 #include "content/renderer/pepper/content_renderer_pepper_host_factory.h"
@@ skipping 15 matching lines @@
  public:
   // This function takes the RenderView and instance that the mock resource
   // host will be associated with.
   MockRendererPpapiHost(RenderView* render_view,
                         PP_Instance instance);
   virtual ~MockRendererPpapiHost();
 
   ppapi::proxy::ResourceMessageTestSink& sink() { return sink_; }
   PP_Instance pp_instance() const { return pp_instance_; }
 
+  // Sets whether there is currently a user gesture. Defaults to false.
   void set_has_user_gesture(bool gesture) { has_user_gesture_ = gesture; }
 
   // RendererPpapiHost.
   virtual ppapi::host::PpapiHost* GetPpapiHost() OVERRIDE;
   virtual bool IsValidInstance(PP_Instance instance) const OVERRIDE;
   virtual RenderView* GetRenderViewForInstance(
       PP_Instance instance) const OVERRIDE;
   virtual bool HasUserGesture(PP_Instance instance) const OVERRIDE;
 
  private:
   ppapi::proxy::ResourceMessageTestSink sink_;
   ppapi::host::PpapiHost ppapi_host_;
 
   RenderView* render_view_;
   PP_Instance pp_instance_;
 
   bool has_user_gesture_;
 
   DISALLOW_COPY_AND_ASSIGN(MockRendererPpapiHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_PEPPER_MOCK_RENDERER_PPAPI_HOST_H_