Adds UMA histograms for desktop tab and audio capture through

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 602 matching lines @@
     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())));
+                           main_frame->GetRoutingID()),
+        WebContentsVideoCaptureDevice::NONE_TYPE));
 
     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 515 matching lines @@
         policies[i], gfx::Size(1000, 1000), gfx::Size(1000, 1000));
     RunTestForPreferredSize(
         policies[i], gfx::Size(1600, 1000), gfx::Size(1600, 1000));
     RunTestForPreferredSize(
         policies[i], gfx::Size(837, 999), gfx::Size(837, 999));
   }
 }
 
 }  // namespace
 }  // namespace content