ARC: Show virtual keyboard when necessary on text input type change events.

components/arc/ime/arc_ime_bridge.h

 // 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.
 
 #ifndef COMPONENTS_ARC_IME_ARC_IME_BRIDGE_H_
 #define COMPONENTS_ARC_IME_ARC_IME_BRIDGE_H_
 
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "components/arc/arc_service.h"
@@ skipping 27 matching lines @@
                      public aura::WindowObserver,
                      public aura::client::FocusChangeObserver,
                      public ui::TextInputClient {
  public:
   explicit ArcImeBridge(ArcBridgeService* bridge_service);
   ~ArcImeBridge() override;
 
   // Injects the custom IPC host object for testing purpose only.
   void SetIpcHostForTesting(scoped_ptr<ArcImeIpcHost> test_ipc_host);
 
+  // Injects the custom IME for testing purpose only.
+  void SetInputMethodForTesting(ui::InputMethod* test_input_method);
+
   // Overridden from aura::EnvObserver:
   void OnWindowInitialized(aura::Window* new_window) override;
 
   // Overridden from aura::WindowObserver:
   void OnWindowAddedToRootWindow(aura::Window* window) override;
 
   // Overridden from aura::client::FocusChangeObserver:
   void OnWindowFocused(aura::Window* gained_focus,
                        aura::Window* lost_focus) override;
 
@@ skipping 39 matching lines @@
 
   scoped_ptr<ArcImeIpcHost> ipc_host_;
   ui::TextInputType ime_type_;
   gfx::Rect cursor_rect_;
   bool has_composition_text_;
 
   aura::WindowTracker observing_root_windows_;
   aura::WindowTracker arc_windows_;
   aura::WindowTracker focused_arc_window_;
 
+  ui::InputMethod* test_input_method_;
+
   DISALLOW_COPY_AND_ASSIGN(ArcImeBridge);
 };
 
 }  // namespace arc
 
 #endif  // COMPONENTS_ARC_IME_ARC_IME_BRIDGE_H_