browser: Move some ash files into ui/ash.

chrome/browser/ui/ash/volume_controller_chromeos.cc

Index: chrome/browser/ui/ash/volume_controller_chromeos.cc
diff --git a/chrome/browser/ui/ash/volume_controller_chromeos.cc b/chrome/browser/ui/ash/volume_controller_chromeos.cc
new file mode 100644
index 0000000000000000000000000000000000000000..e18bb019673131abfaad2b68752ab77b6e5efde9
--- /dev/null
+++ b/chrome/browser/ui/ash/volume_controller_chromeos.cc
@@ -0,0 +1,75 @@
+// Copyright (c) 2012 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 "chrome/browser/ui/ash/volume_controller_chromeos.h"
+
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/chromeos/audio/audio_handler.h"
+#include "chrome/browser/extensions/system/system_api.h"
+#include "content/public/browser/user_metrics.h"
+
+namespace {
+
+// Percent by which the volume should be changed when a volume key is pressed.
+const double kStepPercentage = 4.0;
+
+}  // namespace
+
+bool VolumeController::HandleVolumeMute(const ui::Accelerator& accelerator) {
+  if (accelerator.key_code() == ui::VKEY_F8)
+    content::RecordAction(content::UserMetricsAction("Accel_VolumeMute_F8"));
+
+  chromeos::AudioHandler* audio_handler = chromeos::AudioHandler::GetInstance();
+
+  // Always muting (and not toggling) as per final decision on
+  // http://crosbug.com/3751
+  audio_handler->SetMuted(true);
+
+  extensions::DispatchVolumeChangedEvent(audio_handler->GetVolumePercent(),
+                                         audio_handler->IsMuted());
+  return true;
+}
+
+bool VolumeController::HandleVolumeDown(const ui::Accelerator& accelerator) {
+  if (accelerator.key_code() == ui::VKEY_F9)
+    content::RecordAction(content::UserMetricsAction("Accel_VolumeDown_F9"));
+
+  chromeos::AudioHandler* audio_handler = chromeos::AudioHandler::GetInstance();
+  if (audio_handler->IsMuted())
+    audio_handler->SetVolumePercent(0.0);
+  else
+    audio_handler->AdjustVolumeByPercent(-kStepPercentage);
+
+  extensions::DispatchVolumeChangedEvent(audio_handler->GetVolumePercent(),
+                                         audio_handler->IsMuted());
+  return true;
+}
+
+bool VolumeController::HandleVolumeUp(const ui::Accelerator& accelerator) {
+  if (accelerator.key_code() == ui::VKEY_F10)
+    content::RecordAction(content::UserMetricsAction("Accel_VolumeUp_F10"));
+
+  chromeos::AudioHandler* audio_handler = chromeos::AudioHandler::GetInstance();
+  if (audio_handler->IsMuted()) {
+    audio_handler->SetMuted(false);
+   // If volume percent is still 0.0 after reset the mute status, it means that
+    // the mute status was done by VolumeDown, so we need to increase
+    // the volume as usual.
+    if (audio_handler->GetVolumePercent() == 0.0)
+      audio_handler->AdjustVolumeByPercent(kStepPercentage);
+  } else {
+    audio_handler->AdjustVolumeByPercent(kStepPercentage);
+  }
+
+  extensions::DispatchVolumeChangedEvent(audio_handler->GetVolumePercent(),
+                                         audio_handler->IsMuted());
+  return true;
+}
+
+void VolumeController::SetVolumePercent(double percent) {
+  chromeos::AudioHandler* audio_handler = chromeos::AudioHandler::GetInstance();
+  audio_handler->SetVolumePercent(percent);
+  extensions::DispatchVolumeChangedEvent(audio_handler->GetVolumePercent(),
+                                         audio_handler->IsMuted());
+}