s/\bArc\b/ARC/g for ARC related code.

chrome/browser/ui/ash/launcher/arc_app_window_launcher_controller.cc

 // Copyright 2016 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/launcher/arc_app_window_launcher_controller.h"
 
 #include <string>
 
 #include "ash/common/shelf/shelf_delegate.h"
 #include "ash/common/wm/maximize_mode/maximize_mode_controller.h"
 #include "ash/common/wm/window_state.h"
@@ skipping 228 matching lines @@
 
  private:
   const int task_id_;
   const arc::ArcAppShelfId app_shelf_id_;
   ash::ShelfID shelf_id_ = 0;
   FullScreenMode fullscreen_mode_ = FullScreenMode::NOT_DEFINED;
   // Unowned pointers
   views::Widget* const widget_;
   ArcAppWindowLauncherController* owner_;
   ArcAppWindowLauncherItemController* controller_ = nullptr;
-  // Unowned pointer, represents host Arc window.
+  // Unowned pointer, represents host ARC window.
 
   DISALLOW_COPY_AND_ASSIGN(AppWindow);
 };
 
 ArcAppWindowLauncherController::ArcAppWindowLauncherController(
     ChromeLauncherController* owner,
     ash::ShelfDelegate* shelf_delegate)
     : AppWindowLauncherController(owner), shelf_delegate_(shelf_delegate) {
   if (arc::IsArcAllowedForProfile(owner->profile())) {
     observed_profile_ = owner->profile();
@@ skipping 22 matching lines @@
                                                     : shelf_app_id;
 }
 
 void ArcAppWindowLauncherController::ActiveUserChanged(
     const std::string& user_email) {
   const std::string& primary_user_email = user_manager::UserManager::Get()
                                               ->GetPrimaryUser()
                                               ->GetAccountId()
                                               .GetUserEmail();
   if (user_email == primary_user_email) {
-    // Restore existing Arc window and create controllers for them.
+    // Restore existing ARC window and create controllers for them.
     AttachControllerToWindowsIfNeeded();
 
     // Make sure that we created items for all apps, not only which have a
     // window.
     for (const auto& info : task_id_to_app_window_info_)
       AttachControllerToTask(info.first, *info.second);
 
     // Update active status.
     OnTaskSetActive(active_task_id_);
   } else {
-    // Remove all Arc apps and destroy its controllers. There is no mapping
+    // Remove all ARC apps and destroy its controllers. There is no mapping
     // task id to app window because it is not safe when controller is missing.
     for (auto& it : task_id_to_app_window_info_)
       UnregisterApp(it.second.get());
 
     // Some controllers might have no windows attached, for example background
     // task when foreground tasks is in full screen.
     for (const auto& it : app_shelf_group_to_controller_map_)
       owner()->CloseLauncherItem(it.second->shelf_id());
     app_shelf_group_to_controller_map_.clear();
   }
@@ skipping 13 matching lines @@
   if (!widget || !widget->is_top_level())
     return;
   observed_windows_.push_back(window);
   window->AddObserver(this);
 }
 
 void ArcAppWindowLauncherController::OnWindowVisibilityChanged(
     aura::Window* window,
     bool visible) {
   // Attach window to multi-user manager now to let it manage visibility state
-  // of the Arc window correctly.
+  // of the ARC window correctly.
   if (GetWindowTaskId(window) > 0) {
     chrome::MultiUserWindowManager::GetInstance()->SetWindowOwner(
         window,
         user_manager::UserManager::Get()->GetPrimaryUser()->GetAccountId());
   }
 
   // The application id property should be set at this time. It is important to
   // have window->IsVisible set to true before attaching to a controller because
   // the window is registered in multi-user manager and this manager may
   // consider this new window as hidden for current profile. Multi-user manager
@@ skipping 372 matching lines @@
   const std::string arc_app_id = exo::ShellSurface::GetApplicationId(window);
   if (arc_app_id.empty())
     return -1;
 
   int task_id = -1;
   if (sscanf(arc_app_id.c_str(), "org.chromium.arc.%d", &task_id) != 1)
     return -1;
 
   return task_id;
 }