Change kEnableAudioTrackProcessing to a disable flag and remove finch code

content/browser/media/webrtc_getusermedia_browsertest.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 "base/command_line.h"
 #include "base/debug/trace_event_impl.h"
 #include "base/json/json_reader.h"
 #include "base/strings/stringprintf.h"
 #include "base/test/trace_event_analyzer.h"
 #include "base/values.h"
@@ skipping 67 matching lines @@
 class WebRtcGetUserMediaBrowserTest: public WebRtcContentBrowserTest,
                                      public testing::WithParamInterface<bool> {
  public:
   WebRtcGetUserMediaBrowserTest() : trace_log_(NULL) {}
   virtual ~WebRtcGetUserMediaBrowserTest() {}
 
   virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
     WebRtcContentBrowserTest::SetUpCommandLine(command_line);
 
     bool enable_audio_track_processing = GetParam();
-    if (enable_audio_track_processing)
-      command_line->AppendSwitch(switches::kEnableAudioTrackProcessing);
+    if (!enable_audio_track_processing)
+      command_line->AppendSwitch(switches::kDisableAudioTrackProcessing);
   }
 
   void StartTracing() {
     CHECK(trace_log_ == NULL) << "Can only can start tracing once";
     trace_log_ = base::debug::TraceLog::GetInstance();
     trace_log_->SetEnabled(base::debug::CategoryFilter("video"),
                            base::debug::TraceLog::RECORDING_MODE,
                            base::debug::TraceLog::ENABLE_SAMPLING);
     // Check that we are indeed recording.
     EXPECT_EQ(trace_log_->GetNumTracesRecorded(), 1);
@@ skipping 498 matching lines @@
     {640, 640, 360, 360, 10, 30},
     {640, 640, 480, 480, 10, 30},
     {960, 960, 720, 720, 10, 30},
     {1280, 1280, 720, 720, 10, 30}};
 
 INSTANTIATE_TEST_CASE_P(UserMedia,
                         WebRtcConstraintsBrowserTest,
                         testing::ValuesIn(kAllUserMediaSizes));
 
 }  // namespace content