cros: Remove system-level policy for audio capture allowed

chromeos/audio/audio_devices_pref_handler_impl_unittest.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 "chromeos/audio/audio_devices_pref_handler_impl.h"
 
 #include "base/memory/ref_counted.h"
 #include "base/prefs/testing_pref_service.h"
 #include "chromeos/audio/audio_device.h"
 #include "chromeos/audio/audio_devices_pref_handler.h"
@@ skipping 44 matching lines @@
 
 const AudioDevice kOutputDeviceWithSpecialCharacters(
     AudioNode(false,
               kOtherTypeOutputId,
               "Fake ~!@#$%^&*()_+`-=<>?,./{}|[]\\\\Headphone",
               "SOME_OTHER_TYPE",
               "Other Type Output Device",
               false,
               0));
 
-const char kAudioCaptureAllowedPref[] = "audio_capture_allowed";
-
 class AudioDevicesPrefHandlerTest : public testing::Test {
  public:
   AudioDevicesPrefHandlerTest() {}
   ~AudioDevicesPrefHandlerTest() override {}
 
   void SetUp() override {
     pref_service_.reset(new TestingPrefServiceSimple());
-    AudioDevicesPrefHandlerImpl::RegisterPrefs(pref_service_->registry(),
-                                               kAudioCaptureAllowedPref);
-    audio_pref_handler_ = new AudioDevicesPrefHandlerImpl(
-        pref_service_.get(), kAudioCaptureAllowedPref);
+    AudioDevicesPrefHandlerImpl::RegisterPrefs(pref_service_->registry());
+    audio_pref_handler_ = new AudioDevicesPrefHandlerImpl(pref_service_.get());
   }
 
   void TearDown() override { audio_pref_handler_ = NULL; }
 
  protected:
   scoped_refptr<AudioDevicesPrefHandler> audio_pref_handler_;
   scoped_ptr<TestingPrefServiceSimple> pref_service_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AudioDevicesPrefHandlerTest);
 };
 
 TEST_F(AudioDevicesPrefHandlerTest, TestDefaultValues) {
   // TODO(rkc): Once the bug with default preferences is fixed, fix this test
   // also. http://crbug.com/442489
   EXPECT_EQ(75.0, audio_pref_handler_->GetInputGainValue(&kInternalMic));
   EXPECT_EQ(75.0, audio_pref_handler_->GetOutputVolumeValue(&kHeadphone));
   EXPECT_EQ(75.0, audio_pref_handler_->GetOutputVolumeValue(&kHDMIOutput));
 }
 
 TEST_F(AudioDevicesPrefHandlerTest, PrefsRegistered) {
   // The standard audio prefs are registered.
   EXPECT_TRUE(pref_service_->FindPreference(prefs::kAudioDevicesVolumePercent));
   EXPECT_TRUE(pref_service_->FindPreference(prefs::kAudioDevicesMute));
   EXPECT_TRUE(pref_service_->FindPreference(prefs::kAudioOutputAllowed));
   EXPECT_TRUE(pref_service_->FindPreference(prefs::kAudioVolumePercent));
   EXPECT_TRUE(pref_service_->FindPreference(prefs::kAudioMute));
-
-  // The optional pref is also registered.
-  EXPECT_TRUE(pref_service_->FindPreference(kAudioCaptureAllowedPref));
 }
 
 TEST_F(AudioDevicesPrefHandlerTest, TestBasicInputOutputDevices) {
   audio_pref_handler_->SetVolumeGainValue(kInternalMic, 13.37);
   EXPECT_EQ(13.37, audio_pref_handler_->GetInputGainValue(&kInternalMic));
   audio_pref_handler_->SetVolumeGainValue(kHeadphone, 47.28);
   EXPECT_EQ(47.28, audio_pref_handler_->GetOutputVolumeValue(&kHeadphone));
 }
 
 TEST_F(AudioDevicesPrefHandlerTest, TestSpecialCharactersInDeviceNames) {
   audio_pref_handler_->SetVolumeGainValue(kInputDeviceWithSpecialCharacters,
                                           73.31);
   audio_pref_handler_->SetVolumeGainValue(kOutputDeviceWithSpecialCharacters,
                                           85.92);
 
   EXPECT_EQ(73.31, audio_pref_handler_->GetInputGainValue(
       &kInputDeviceWithSpecialCharacters));
   EXPECT_EQ(85.92, audio_pref_handler_->GetOutputVolumeValue(
       &kOutputDeviceWithSpecialCharacters));
 }
 
 }  // namespace chromeos