No longer requiring pixel output for WebRTC tests.

content/test/webrtc_content_browsertest_base.cc

 // Copyright 2014 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/test/webrtc_content_browsertest_base.h"
 
 #include "base/command_line.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/public/common/content_switches.h"
@@ skipping 16 matching lines @@
   ASSERT_TRUE(CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kUseFakeUIForMediaStream));
 
   // Always include loopback interface in network list, in case the test device
   // doesn't have other interfaces available.
   CommandLine::ForCurrentProcess()->AppendSwitch(
       switches::kAllowLoopbackInPeerConnection);
 }
 
 void WebRtcContentBrowserTest::SetUp() {
+  // This is needed lest we break on some virtual machines and weird bot
+  // configs, like ChromeOS and Win x64 swarming.
   EnablePixelOutput();
 #if defined(OS_CHROMEOS)
-    chromeos::CrasAudioHandler::InitializeForTesting();
+  chromeos::CrasAudioHandler::InitializeForTesting();
 #endif
   ContentBrowserTest::SetUp();
 }
 
 void WebRtcContentBrowserTest::TearDown() {
   ContentBrowserTest::TearDown();
 #if defined(OS_CHROMEOS)
     chromeos::CrasAudioHandler::Shutdown();
 #endif
 }
@@ skipping 41 matching lines @@
 
 void WebRtcContentBrowserTest::DisableOpusIfOnAndroid() {
 #if defined(OS_ANDROID)
   // Always force iSAC 16K on Android for now (Opus is broken).
   EXPECT_EQ("isac-forced",
             ExecuteJavascriptAndReturnResult("forceIsac16KInSdp();"));
 #endif
 }
 
 }  // namespace content