[Media Galleries] Move RemovableStorageInfo notifications to chrome namespace (part 2)

chrome/browser/intents/device_attached_intent_source.cc

 // 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/intents/device_attached_intent_source.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/file_path.h"
 #include "base/string16.h"
 #include "base/memory/ref_counted.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/intents/web_intents_registry.h"
 #include "chrome/browser/intents/web_intents_registry_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/system_monitor/media_storage_util.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "content/public/browser/web_intents_dispatcher.h"
 #include "content/public/browser/web_contents_delegate.h"
 #include "webkit/fileapi/file_system_types.h"
 #include "webkit/fileapi/isolated_context.h"
 #include "webkit/glue/web_intent_data.h"
 #include "webkit/glue/web_intent_service_data.h"
 
-using base::SystemMonitor;
 using chrome::MediaStorageUtil;
 using content::WebContentsDelegate;
 using webkit_glue::WebIntentServiceData;
 
 namespace {
 
 // Specifies device attached web intent kAction.
 const char kAction[] = "chrome-extension://attach";
 
 // Specifies device attached web intent type.
 const char kIntentType[] = "chrome-extension://filesystem";
 
 // Dispatch intent only when there is a list of registered services. This is a
 // helper class that stores the attached media device information and decides
 // whether to dispatch an intent or not.
 class DispatchIntentTaskHelper
     : public base::RefCountedThreadSafe<DispatchIntentTaskHelper> {
  public:
   DispatchIntentTaskHelper(
       const base::WeakPtr<DeviceAttachedIntentSource> source,
-      SystemMonitor::RemovableStorageInfo device_info)
+      chrome::RemovableStorageNotifications::RemovableStorageInfo device_info)
       : source_(source),
         device_info_(device_info) {
   }
 
   // Query callback for WebIntentsRegistry::GetIntentServices function.
   void MayDispatchIntentForService(
       const std::vector<WebIntentServiceData>& services) {
     if (!services.empty() && source_)
       source_->DispatchIntentsForService(device_info_);
   }
 
  private:
   friend class base::RefCountedThreadSafe<DispatchIntentTaskHelper>;
 
   ~DispatchIntentTaskHelper() {}
 
   // A weak pointer to |DeviceAttachedIntentSource| object to dispatch a
   // web intent.
   base::WeakPtr<DeviceAttachedIntentSource> source_;
 
   // Store the device info. This is used while registering the device as file
   // system.
-  const SystemMonitor::RemovableStorageInfo device_info_;
+  const chrome::RemovableStorageNotifications::RemovableStorageInfo
+      device_info_;
 
   DISALLOW_COPY_AND_ASSIGN(DispatchIntentTaskHelper);
 };
 
 }  // namespace
 
 DeviceAttachedIntentSource::DeviceAttachedIntentSource(
     Browser* browser, WebContentsDelegate* delegate)
     : browser_(browser), delegate_(delegate) {
-  SystemMonitor* sys_monitor = SystemMonitor::Get();
-  if (sys_monitor)
-    sys_monitor->AddDevicesChangedObserver(this);
+  chrome::RemovableStorageNotifications* notifications =
+      chrome::RemovableStorageNotifications::GetInstance();
+  if (notifications)
+    notifications->AddRemovableStorageObserver(this);
 }
 
 DeviceAttachedIntentSource::~DeviceAttachedIntentSource() {
-  SystemMonitor* sys_monitor = SystemMonitor::Get();
-  if (sys_monitor)
-    sys_monitor->RemoveDevicesChangedObserver(this);
+  chrome::RemovableStorageNotifications* notifications =
+      chrome::RemovableStorageNotifications::GetInstance();
+  if (notifications)
+    notifications->RemoveRemovableStorageObserver(this);
 }
 
 void DeviceAttachedIntentSource::OnRemovableStorageAttached(
     const std::string& id,
     const string16& name,
     const FilePath::StringType& location) {
   if (!browser_->window()->IsActive())
     return;
 
   // TODO(kmadhusu): Dispatch intents on incognito window.
   if (browser_->profile()->IsOffTheRecord())
     return;
 
   // Only handle mass storage for now.
   // TODO(kmadhusu): Handle all device types. http://crbug.com/140353.
   if (!MediaStorageUtil::IsMassStorageDevice(id))
     return;
   DCHECK(MediaStorageUtil::IsRemovableDevice(id));
 
   // Sanity checks for |device_path|.
   const FilePath device_path(location);
   if (!device_path.IsAbsolute() || device_path.ReferencesParent())
     return;
 
-  SystemMonitor::RemovableStorageInfo device_info(id, name, location);
+  chrome::RemovableStorageNotifications::RemovableStorageInfo device_info(
+      id, name, location);
   scoped_refptr<DispatchIntentTaskHelper> task = new DispatchIntentTaskHelper(
       AsWeakPtr(), device_info);
   WebIntentsRegistryFactory::GetForProfile(browser_->profile())->
       GetIntentServices(
           UTF8ToUTF16(kAction), UTF8ToUTF16(kIntentType),
           base::Bind(&DispatchIntentTaskHelper::MayDispatchIntentForService,
                      task.get()));
 }
 
 void DeviceAttachedIntentSource::DispatchIntentsForService(
-    const base::SystemMonitor::RemovableStorageInfo& device_info) {
+    const chrome::RemovableStorageNotifications::RemovableStorageInfo&
+        device_info) {
   // Store the media device info locally.
   device_id_map_.insert(std::make_pair(device_info.device_id, device_info));
 
   std::string device_name(UTF16ToUTF8(device_info.name));
   const FilePath device_path(device_info.location);
 
   // TODO(kinuko, kmadhusu): Use a different file system type for MTP.
   // TODO(kmadhusu): To manage the registered file systems efficiently, register
   // the attached device media file system using MediaFileSystemRegistry.
   const std::string fs_id = fileapi::IsolatedContext::GetInstance()->
@@ skipping 11 matching lines @@
 void DeviceAttachedIntentSource::OnRemovableStorageDetached(
     const std::string& id) {
   DeviceIdToInfoMap::iterator it = device_id_map_.find(id);
   if (it == device_id_map_.end())
     return;
 
   FilePath path(it->second.location);
   fileapi::IsolatedContext::GetInstance()->RevokeFileSystemByPath(path);
   device_id_map_.erase(it);
 }