[Media] Add user gesture reporting for API calls to midi and media streams.

content/renderer/media/midi_dispatcher.cc

 // Copyright 2013 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/media/midi_dispatcher.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "content/common/media/midi_messages.h"
 #include "content/renderer/render_view_impl.h"
 #include "third_party/WebKit/public/web/WebMIDIPermissionRequest.h"
 #include "third_party/WebKit/public/web/WebSecurityOrigin.h"
+#include "third_party/WebKit/public/web/WebUserGestureIndicator.h"
 
 using blink::WebMIDIPermissionRequest;
 using blink::WebSecurityOrigin;
 
 namespace content {
 
 MidiDispatcher::MidiDispatcher(RenderViewImpl* render_view)
     : RenderViewObserver(render_view) {
 }
 
 MidiDispatcher::~MidiDispatcher() {}
 
 bool MidiDispatcher::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(MidiDispatcher, message)
     IPC_MESSAGE_HANDLER(MidiMsg_SysExPermissionApproved,
                         OnSysExPermissionApproved)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 void MidiDispatcher::requestSysexPermission(
       const WebMIDIPermissionRequest& request) {
   int bridge_id = requests_.Add(new WebMIDIPermissionRequest(request));
   WebSecurityOrigin security_origin = request.securityOrigin();
   std::string origin = security_origin.toString().utf8();
   GURL url(origin);
-  Send(new MidiHostMsg_RequestSysExPermission(routing_id(), bridge_id, url));
+  Send(new MidiHostMsg_RequestSysExPermission(routing_id(), bridge_id, url,
+      blink::WebUserGestureIndicator::isProcessingUserGesture()));
 }
 
 void MidiDispatcher::cancelSysexPermissionRequest(
     const WebMIDIPermissionRequest& request) {
   for (IDMap<WebMIDIPermissionRequest>::iterator it(&requests_);
        !it.IsAtEnd();
        it.Advance()) {
     WebMIDIPermissionRequest* value = it.GetCurrentValue();
     if (value->equals(request)) {
       base::string16 origin = request.securityOrigin().toString();
       Send(new MidiHostMsg_CancelSysExPermissionRequest(
           routing_id(), it.GetCurrentKey(), GURL(origin)));
       requests_.Remove(it.GetCurrentKey());
       break;
     }
   }
 }
 
 void MidiDispatcher::OnSysExPermissionApproved(int bridge_id,
                                                bool is_allowed) {
   // |request| can be NULL when the request is canceled.
   WebMIDIPermissionRequest* request = requests_.Lookup(bridge_id);
   if (!request)
     return;
   request->setIsAllowed(is_allowed);
   requests_.Remove(bridge_id);
 }
 
 }  // namespace content