Revert 124288 (made mac browser and ui_tests flaky) - Add Media device notification to SystemMonito…

content/browser/mac/media_device_notifications.mm

Index: content/browser/mac/media_device_notifications.mm
===================================================================
--- content/browser/mac/media_device_notifications.mm	(revision 124333)
+++ content/browser/mac/media_device_notifications.mm	(working copy)
@@ -1,133 +0,0 @@
-// 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 "content/browser/mac/media_device_notifications.h"
-
-#include <Carbon/Carbon.h>
-#include <CoreFoundation/CoreFoundation.h>
-
-#include "base/file_path.h"
-#include "base/mac/foundation_util.h"
-#include "base/mac/scoped_cftyperef.h"
-#include "base/sys_string_conversions.h"
-#include "base/system_monitor/system_monitor.h"
-
-namespace content {
-
-namespace {
-
-const CFStringRef kICAUserAssignedDeviceNameKey =
-    CFSTR("ICAUserAssignedDeviceNameKey");
-const CFStringRef kICDeviceNameKey = CFSTR("ifil");
-const CFStringRef kICDeviceBSDNameKey = CFSTR("bsdName");
-
-CFStringRef CopyMountPointFromBSDName(CFStringRef bsd_name) {
-  base::mac::ScopedCFTypeRef<DASessionRef> session(
-      DASessionCreate(kCFAllocatorDefault));
-  if (!session.get())
-    return NULL;
-
-  base::mac::ScopedCFTypeRef<DADiskRef> disk(
-      DADiskCreateFromBSDName(kCFAllocatorDefault, session.get(),
-                              base::SysCFStringRefToUTF8(bsd_name).c_str()));
-  if (!disk.get())
-    return NULL;
-
-  base::mac::ScopedCFTypeRef<CFDictionaryRef> description(
-      DADiskCopyDescription(disk));
-  if (!description.get())
-    return NULL;
-
-  CFURLRef mount_point = base::mac::GetValueFromDictionary<CFURLRef>(
-      description, kDADiskDescriptionVolumePathKey);
-  if (!mount_point)
-    return NULL;
-
-  return CFURLCopyFileSystemPath(mount_point, kCFURLPOSIXPathStyle);
-}
-
-bool GetDeviceInfo(unsigned long device_number, std::string* name,
-                   FilePath* location) {
-  ICACopyObjectPropertyDictionaryPB properties_request;
-  properties_request.object = device_number;
-  CFDictionaryRef device_properties;
-  properties_request.theDict = &device_properties;
-  if (ICACopyObjectPropertyDictionary(&properties_request, NULL) != noErr)
-    return false;
-  base::mac::ScopedCFTypeRef<CFDictionaryRef> scoped_device_properties(
-      device_properties);
-
-  CFStringRef device_name = base::mac::GetValueFromDictionary<CFStringRef>(
-      device_properties, kICAUserAssignedDeviceNameKey);
-  if (device_name == NULL) {
-    device_name = base::mac::GetValueFromDictionary<CFStringRef>(
-        device_properties, kICDeviceNameKey);
-  }
-  if (device_name == NULL)
-    return false;
-  *name = base::SysCFStringRefToUTF8(device_name);
-
-  // TODO(vandebo) Support all media device, for now we only support mass
-  // storage media devices.
-  CFStringRef device = base::mac::GetValueFromDictionary<CFStringRef>(
-      device_properties, kICDeviceBSDNameKey);
-  if (device == NULL)
-    return false;
-  base::mac::ScopedCFTypeRef<CFStringRef>
-      path(CopyMountPointFromBSDName(device));
-  if (path.get() == NULL)
-    return false;
-
-  *location = FilePath(base::SysCFStringRefToUTF8(path).c_str());
-
-  return true;
-}
-
-void MediaDeviceNotificationCallback(CFStringRef notification_type,
-                                     CFDictionaryRef notification_dictionary) {
-  bool attach = false;
-  if (CFEqual(notification_type, kICANotificationTypeDeviceAdded)) {
-    attach = true;
-  } else if (!CFEqual(notification_type, kICANotificationTypeDeviceRemoved)) {
-    return;
-  }
-
-  base::SystemMonitor* system_monitor = base::SystemMonitor::Get();
-
-  CFNumberRef device_number_object =
-      base::mac::GetValueFromDictionary<CFNumberRef>(
-          notification_dictionary, kICANotificationDeviceICAObjectKey);
-  unsigned long device_number =
-      [base::mac::CFToNSCast(device_number_object) unsignedLongValue];
-  if (attach) {
-    std::string device_name;
-    FilePath location;
-    if (GetDeviceInfo(device_number, &device_name, &location)) {
-      system_monitor->ProcessMediaDeviceAttached(device_number, device_name,
-                                                 location);
-    }
-  } else {
-    system_monitor->ProcessMediaDeviceDetached(device_number);
-  }
-}
-
-}  // namespace
-
-void StartMediaDeviceNotifications() {
-  NSArray* events_of_interest = [NSArray arrayWithObjects:
-                                 (id)kICANotificationTypeDeviceAdded,
-                                 (id)kICANotificationTypeDeviceRemoved,
-                                 nil];
-
-  ICARegisterForEventNotificationPB notification_request;
-  notification_request.objectOfInterest = 0;  // Zero means all objects
-  notification_request.eventsOfInterest =
-      base::mac::NSToCFCast(events_of_interest);
-  notification_request.notificationProc = &MediaDeviceNotificationCallback;
-  notification_request.options = NULL;
-  OSErr err = ICARegisterForEventNotification(&notification_request, NULL);
-  CHECK_EQ(err, noErr);
-}
-
-}  // namespace content