arc: Revamp the ArcBridgeService interface

components/arc/window_manager/arc_window_manager_bridge.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 "components/arc/window_manager/arc_window_manager_bridge.h"
 
 #include "ash/common/wm/maximize_mode/maximize_mode_controller.h"
 #include "ash/common/wm_shell.h"
 #include "base/logging.h"
 #include "components/arc/arc_bridge_service.h"
 
 namespace arc {
 
 ArcWindowManagerBridge::ArcWindowManagerBridge(ArcBridgeService* bridge_service)
     : ArcService(bridge_service),
       current_mode_(mojom::WindowManagerMode::MODE_NORMAL) {
-  arc_bridge_service()->AddObserver(this);
+  arc_bridge_service()->window_manager()->AddObserver(this);
   if (!ash::WmShell::HasInstance()) {
     // The shell gets always loaded before ARC. If there is no shell it can only
     // mean that a unit test is running.
     return;
   }
   // Monitor any mode changes from now on.
   ash::WmShell::Get()->AddShellObserver(this);
 }
 
-void ArcWindowManagerBridge::OnWindowManagerInstanceReady() {
+void ArcWindowManagerBridge::OnInstanceReady() {
   if (!ash::WmShell::HasInstance()) {
     // The shell gets always loaded before ARC. If there is no shell it can only
     // mean that a unit test is running.
     return;
   }
   ash::MaximizeModeController* controller =
       ash::WmShell::Get()->maximize_mode_controller();
   if (!controller)
     return;
 
   // Set the initial mode configuration.
   SendWindowManagerModeChange(controller->IsMaximizeModeWindowManagerEnabled());
 }
 
 ArcWindowManagerBridge::~ArcWindowManagerBridge() {
   if (ash::WmShell::HasInstance())
     ash::WmShell::Get()->RemoveShellObserver(this);
-  arc_bridge_service()->RemoveObserver(this);
+  arc_bridge_service()->window_manager()->RemoveObserver(this);
 }
 
 void ArcWindowManagerBridge::OnMaximizeModeStarted() {
   SendWindowManagerModeChange(true);
 }
 
 void ArcWindowManagerBridge::OnMaximizeModeEnded() {
   SendWindowManagerModeChange(false);
 }
 
 void ArcWindowManagerBridge::SendWindowManagerModeChange(
     bool touch_view_enabled) {
   // We let the ArcBridgeService check that we are calling on the right thread.
   DCHECK(ArcBridgeService::Get() != nullptr);
-  mojom::WindowManagerMode wm_mode = touch_view_enabled ?
-      mojom::WindowManagerMode::MODE_TOUCH_VIEW :
-      mojom::WindowManagerMode::MODE_NORMAL;
+  mojom::WindowManagerMode wm_mode =
+      touch_view_enabled ? mojom::WindowManagerMode::MODE_TOUCH_VIEW
+                         : mojom::WindowManagerMode::MODE_NORMAL;
 
   mojom::WindowManagerInstance* wm_instance =
-      arc_bridge_service()->window_manager_instance();
+      arc_bridge_service()->window_manager()->instance();
   if (!wm_instance || wm_mode == current_mode_) {
     return;
   }
   VLOG(1) << "Sending window manager mode change to " << wm_mode;
   wm_instance->OnWindowManagerModeChange(wm_mode);
   current_mode_ = wm_mode;
 }
 
 }  // namespace arc