Run ContentMain in a browser_test's browser process. This removes duplication of code in the browse…

chrome/browser/extensions/api/webrtc_audio_private/webrtc_audio_private_browsertest.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 "base/json/json_writer.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/platform_thread.h"
@@ skipping 56 matching lines @@
       bool* audio_playing,
       const RenderViewHost::AudioOutputControllerList& list) {
     if (!list.empty())
       *audio_playing = true;
   }
 };
 
 class WebrtcAudioPrivateTest : public AudioWaitingExtensionTest {
  public:
   WebrtcAudioPrivateTest()
-      : enumeration_event_(false, false),
-        source_url_("chrome-extension://fakeid012345678/fakepage.html") {
+      : enumeration_event_(false, false) {
+  }
+
+  virtual void SetUpOnMainThread() OVERRIDE {
+    AudioWaitingExtensionTest::SetUpOnMainThread();
+    // Needs to happen after chrome's schemes are added.
+    source_url_ = GURL("chrome-extension://fakeid012345678/fakepage.html");
   }
 
  protected:
   std::string InvokeGetActiveSink(int tab_id) {
     base::ListValue parameters;
     parameters.AppendInteger(tab_id);
     std::string parameter_string;
     JSONWriter::Write(&parameters, &parameter_string);
 
     scoped_refptr<WebrtcAudioPrivateGetActiveSinkFunction> function =
@@ skipping 313 matching lines @@
   ASSERT_TRUE(content::ExecuteScript(tab, "browsertestRunAllTests();"));
 
   content::TitleWatcher title_watcher(tab, base::ASCIIToUTF16("success"));
   title_watcher.AlsoWaitForTitle(base::ASCIIToUTF16("failure"));
   base::string16 result = title_watcher.WaitAndGetTitle();
   EXPECT_EQ(base::ASCIIToUTF16("success"), result);
 }
 #endif  // defined(GOOGLE_CHROME_BUILD) || defined(ENABLE_HANGOUT_SERVICES_EXTENSION)
 
 }  // namespace extensions