Use the existing user gesture token for PPAPI URL requests

content/renderer/pepper/pepper_plugin_instance_impl.cc

 // 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.
 
 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/logging.h"
 #include "base/memory/linked_ptr.h"
@@ skipping 3143 matching lines @@
     return PP_ERROR_FAILED;
 
   ppapi::URLRequestInfoData completed_request = request;
 
   WebURLRequest web_request;
   if (!CreateWebURLRequest(
           pp_instance_, &completed_request, frame, &web_request)) {
     return PP_ERROR_FAILED;
   }
   web_request.setFirstPartyForCookies(document.firstPartyForCookies());
-  web_request.setHasUserGesture(from_user_action);
+  if (IsProcessingUserGesture())
+    web_request.setHasUserGesture(true);
 
   GURL gurl(web_request.url());
   if (gurl.SchemeIs(url::kJavaScriptScheme)) {
     // In imitation of the NPAPI implementation, only |target_frame == frame| is
     // allowed for security reasons.
     WebFrame* target_frame =
         frame->view()->findFrameByName(WebString::fromUTF8(target), frame);
     if (target_frame != frame)
       return PP_ERROR_NOACCESS;
 
     // TODO(viettrungluu): NPAPI sends the result back to the plugin -- do we
     // need that?
-    WebString result = container_->executeScriptURL(gurl, from_user_action);
+    blink::WebScopedUserGesture user_gesture(CurrentUserGestureToken());
+    WebString result = container_->executeScriptURL(gurl, false);

[Mike West, 2015/04/08 07:36:39]

Nit: Can we drop the second argument?

     return result.isNull() ? PP_ERROR_FAILED : PP_OK;
   }
 
   // Only GETs and POSTs are supported.
   if (web_request.httpMethod() != "GET" && web_request.httpMethod() != "POST")
     return PP_ERROR_BADARGUMENT;
 
   WebString target_str = WebString::fromUTF8(target);
+  blink::WebScopedUserGesture user_gesture(CurrentUserGestureToken());
   container_->loadFrameRequest(web_request, target_str, false, NULL);
   return PP_OK;
 }
 
 int PepperPluginInstanceImpl::MakePendingFileRefRendererHost(
     const base::FilePath& path) {
   RendererPpapiHostImpl* host_impl = module_->renderer_ppapi_host();
   PepperFileRefRendererHost* file_ref_host(
       new PepperFileRefRendererHost(host_impl, pp_instance(), 0, path));
   return host_impl->GetPpapiHost()->AddPendingResourceHost(
@@ skipping 140 matching lines @@
 
 void PepperPluginInstanceImpl::RecordFlashJavaScriptUse() {
   if (initialized_ && !javascript_used_ && is_flash_plugin_) {
     javascript_used_ = true;
     RenderThread::Get()->RecordAction(
         base::UserMetricsAction("Flash.JavaScriptUsed"));
   }
 }
 
 }  // namespace content