Created uber tray UI for monitoring ongoing WebDrive sync operations

ash/system/tray/system_tray.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 "ash/system/tray/system_tray.h"
 
 #include "ash/shell.h"
 #include "ash/shell/panel_window.h"
 #include "ash/shell_window_ids.h"
 #include "ash/system/audio/tray_volume.h"
 #include "ash/system/bluetooth/tray_bluetooth.h"
 #include "ash/system/brightness/tray_brightness.h"
 #include "ash/system/date/tray_date.h"
+#include "ash/system/drive/tray_drive.h"
 #include "ash/system/ime/tray_ime.h"
 #include "ash/system/network/tray_network.h"
 #include "ash/system/power/power_status_observer.h"
 #include "ash/system/power/power_supply_status.h"
 #include "ash/system/power/tray_power.h"
 #include "ash/system/settings/tray_settings.h"
 #include "ash/system/tray/tray_empty.h"
 #include "ash/system/tray/tray_constants.h"
 #include "ash/system/tray/system_tray_delegate.h"
 #include "ash/system/tray/system_tray_item.h"
@@ skipping 105 matching lines @@
 
  private:
   // Overridden from views::View.
   virtual void ChildVisibilityChanged(View* child) OVERRIDE {
     if (visible() == child->visible())
       return;
     SetVisible(child->visible());
     PreferredSizeChanged();
   }
 
+  virtual void ChildPreferredSizeChanged(View* child) OVERRIDE {
+    PreferredSizeChanged();
+  }
+
   virtual void OnMouseEntered(const views::MouseEvent& event) OVERRIDE {
     hover_ = true;
     SchedulePaint();
   }
 
   virtual void OnMouseExited(const views::MouseEvent& event) OVERRIDE {
     hover_ = false;
     SchedulePaint();
   }
 
@@ skipping 449 matching lines @@
 void SystemTrayBubble::OnWidgetVisibilityChanged(views::Widget* widget,
                                                  bool visible) {
   if (!visible)
     MessageLoopForUI::current()->RemoveObserver(this);
   else
     MessageLoopForUI::current()->AddObserver(this);
 }
 
 }  // namespace internal
 
-// From system_tray_delegate.h
-
-NetworkIconInfo::NetworkIconInfo()
-    : highlight(false),
-      tray_icon_visible(true) {
-}
-
-NetworkIconInfo::~NetworkIconInfo() {
-}
-
-BluetoothDeviceInfo::BluetoothDeviceInfo()
-    : connected(false) {
-}
-
-BluetoothDeviceInfo::~BluetoothDeviceInfo() {
-}
-
-IMEInfo::IMEInfo()
-    : selected(false) {
-}
-
-IMEInfo::~IMEInfo() {
-}
-
-IMEPropertyInfo::IMEPropertyInfo()
-    : selected(false) {
-}
-
-IMEPropertyInfo::~IMEPropertyInfo() {
-}
-
 // SystemTray
 
 SystemTray::SystemTray()
     : items_(),
       accessibility_observer_(NULL),
       audio_observer_(NULL),
       bluetooth_observer_(NULL),
       brightness_observer_(NULL),
       caps_lock_observer_(NULL),
       clock_observer_(NULL),
+      drive_observer_(NULL),
       ime_observer_(NULL),
       network_observer_(NULL),
       power_status_observer_(NULL),
       update_observer_(NULL),
       user_observer_(NULL),
       widget_(NULL),
       background_(new internal::SystemTrayBackground),
       should_show_launcher_(false),
       ALLOW_THIS_IN_INITIALIZER_LIST(hide_background_animator_(this,
           0, kTrayBackgroundAlpha)),
@@ skipping 30 matching lines @@
   internal::TrayVolume* tray_volume = new internal::TrayVolume();
   internal::TrayBluetooth* tray_bluetooth = new internal::TrayBluetooth();
   internal::TrayBrightness* tray_brightness = new internal::TrayBrightness();
   internal::TrayDate* tray_date = new internal::TrayDate();
   internal::TrayPower* tray_power = new internal::TrayPower();
   internal::TrayNetwork* tray_network = new internal::TrayNetwork;
   internal::TrayUser* tray_user = new internal::TrayUser;
   internal::TrayAccessibility* tray_accessibility =
       new internal::TrayAccessibility;
   internal::TrayCapsLock* tray_caps_lock = new internal::TrayCapsLock;
+  internal::TrayDrive* tray_drive = new internal::TrayDrive;
   internal::TrayIME* tray_ime = new internal::TrayIME;
   internal::TrayUpdate* tray_update = new internal::TrayUpdate;
 
   accessibility_observer_ = tray_accessibility;
   audio_observer_ = tray_volume;
   bluetooth_observer_ = tray_bluetooth;
   brightness_observer_ = tray_brightness;
   caps_lock_observer_ = tray_caps_lock;
   clock_observer_ = tray_date;
+  drive_observer_ = tray_drive;
   ime_observer_ = tray_ime;
   network_observer_ = tray_network;
   power_status_observer_ = tray_power;
   update_observer_ = tray_update;
   user_observer_ = tray_user;
 
   AddTrayItem(tray_user);
   AddTrayItem(new internal::TrayEmpty());
   AddTrayItem(tray_power);
   AddTrayItem(tray_network);
   AddTrayItem(tray_bluetooth);
+  AddTrayItem(tray_drive);
   AddTrayItem(tray_ime);
   AddTrayItem(tray_volume);
   AddTrayItem(tray_brightness);
   AddTrayItem(tray_update);
   AddTrayItem(tray_accessibility);
   AddTrayItem(tray_caps_lock);
   AddTrayItem(new internal::TraySettings());
   AddTrayItem(tray_date);
   SetVisible(ash::Shell::GetInstance()->tray_delegate()->
       GetTrayVisibilityOnStartup());
@@ skipping 145 matching lines @@
     canvas->DrawFocusRect(container_->bounds());
 }
 
 void SystemTray::UpdateBackground(int alpha) {
   background_->set_alpha(hide_background_animator_.alpha() +
                          hover_background_animator_.alpha());
   SchedulePaint();
 }
 
 }  // namespace ash