Relanding WebRTC real webcam browsertest for Android.

content/browser/media/webrtc_internals_browsertest.cc

 // Copyright (c) 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 "base/command_line.h"
 #include "base/json/json_reader.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "base/values.h"
 #include "content/public/common/content_switches.h"
@@ skipping 134 matching lines @@
 #else
 #define MAYBE_WebRtcInternalsBrowserTest WebRtcInternalsBrowserTest
 #endif
 
 class MAYBE_WebRtcInternalsBrowserTest: public ContentBrowserTest {
  public:
   MAYBE_WebRtcInternalsBrowserTest() {}
   virtual ~MAYBE_WebRtcInternalsBrowserTest() {}
 
   virtual void SetUpOnMainThread() override {
-    // We need fake devices in this test since we want to run on naked VMs. We
-    // assume these switches are set by default in content_browsertests.
+    // Assume this is set by the content test launcher.
+    ASSERT_TRUE(CommandLine::ForCurrentProcess()->HasSwitch(
+        switches::kUseFakeUIForMediaStream));
     ASSERT_TRUE(CommandLine::ForCurrentProcess()->HasSwitch(
         switches::kUseFakeDeviceForMediaStream));
-    ASSERT_TRUE(CommandLine::ForCurrentProcess()->HasSwitch(
-        switches::kUseFakeUIForMediaStream));
   }
 
  protected:
   bool ExecuteJavascript(const string& javascript) {
     return ExecuteScript(shell()->web_contents(), javascript);
   }
 
   void ExpectTitle(const std::string& expected_title) const {
     base::string16 expected_title16(base::ASCIIToUTF16(expected_title));
     TitleWatcher title_watcher(shell()->web_contents(), expected_title16);
@@ skipping 703 matching lines @@
   ASSERT_TRUE(ExecuteScriptAndExtractInt(
       shell()->web_contents(),
       "window.domAutomationController.send("
       "   peerConnectionDataStore['" + pc.getIdString() + "']" +
       "       .getDataSeries('" + data_series_id + "').getCount())",
       &count));
   EXPECT_EQ(3, count);
 }
 
 }  // namespace content