Let Contraints Controll Mute/Unmute Audio Local Playback For Desktop Sharing

content/browser/media/capture/web_contents_video_capture_device_unittest.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/browser/media/capture/web_contents_video_capture_device.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <utility>
@@ skipping 600 matching lines @@
 
     browser_context_.reset(new TestBrowserContext());
 
     scoped_refptr<SiteInstance> site_instance =
         SiteInstance::Create(browser_context_.get());
     SiteInstanceImpl::set_render_process_host_factory(
         render_process_host_factory_.get());
     web_contents_.reset(
         TestWebContents::Create(browser_context_.get(), site_instance.get()));
     RenderFrameHost* const main_frame = web_contents_->GetMainFrame();
-    device_.reset(WebContentsVideoCaptureDevice::Create(
-        base::StringPrintf("web-contents-media-stream://%d:%d",
-                           main_frame->GetProcess()->GetID(),
-                           main_frame->GetRoutingID())));
+    device_ = WebContentsVideoCaptureDevice::Create(base::StringPrintf(
+        "web-contents-media-stream://%d:%d", main_frame->GetProcess()->GetID(),
+        main_frame->GetRoutingID()));
 
     base::RunLoop().RunUntilIdle();
   }
 
   void TearDown() override {
     // Tear down in opposite order of set-up.
 
     // The device is destroyed asynchronously, and will notify the
     // CaptureTestSourceController when it finishes destruction.
     // Trigger this, and wait.
@@ skipping 574 matching lines @@
   for (int i = 0; i < 3; ++i) {
     SimulateRefreshFrameRequest();
     ASSERT_NO_FATAL_FAILURE(client_observer()->WaitForNextColor(SK_ColorGREEN));
   }
 
   device()->StopAndDeAllocate();
 }
 
 }  // namespace
 }  // namespace content