[Media Router] Wire through a new MRPM call to update media sinks.

chrome/browser/ui/webui/media_router/media_router_ui.cc

 // Copyright 2015 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 "chrome/browser/ui/webui/media_router/media_router_ui.h"
 
 #include <algorithm>
 #include <string>
 #include <utility>
 
@@ skipping 234 matching lines @@
   OnDefaultPresentationChanged(create_session_request_->presentation_request());
 }
 
 void MediaRouterUI::InitCommon(content::WebContents* initiator) {
   DCHECK(initiator);
   DCHECK(router_);
 
   TRACE_EVENT_NESTABLE_ASYNC_INSTANT1("media_router", "UI", initiator,
                                       "MediaRouterUI::InitCommon", this);
 
-#if defined(OS_WIN)
   router_->OnUserGesture();
-#endif
+
   // Create |collator_| before |query_result_manager_| so that |collator_| is
   // already set up when we get a callback from |query_result_manager_|.
   UErrorCode error = U_ZERO_ERROR;
   const std::string& locale = g_browser_process->GetApplicationLocale();
   collator_.reset(
       icu::Collator::createInstance(icu::Locale(locale.c_str()), error));
   if (U_FAILURE(error)) {
     DLOG(ERROR) << "Failed to create collator for locale " << locale;
     collator_.reset();
   }
@@ skipping 314 matching lines @@
         base::Time::Now() - start_time_);
     start_time_ = base::Time();
   }
 }
 
 void MediaRouterUI::UpdateMaxDialogHeight(int height) {
   handler_->UpdateMaxDialogHeight(height);
 }
 
 }  // namespace media_router