Use EventHandler for IME

ash/host/ash_window_tree_host_win.cc

 // Copyright 2014 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/host/ash_window_tree_host.h"
 
 #include "ash/ash_export.h"
 #include "ash/ash_switches.h"
 #include "ash/host/ash_remote_window_tree_host_win.h"
 #include "ash/host/ash_window_tree_host_init_params.h"
 #include "ash/host/root_window_transformer.h"
 #include "ash/host/transformer_helper.h"
+#include "ash/ime/input_method_event_handler.h"
 #include "base/command_line.h"
 #include "base/win/windows_version.h"
 #include "ui/aura/window_tree_host_win.h"
 #include "ui/gfx/geometry/insets.h"
 #include "ui/gfx/transform.h"
 
 namespace ash {
 namespace {
 
 class AshWindowTreeHostWin : public AshWindowTreeHost,
@@ skipping 71 matching lines @@
   gfx::Transform GetRootTransform() const override {
     return transformer_helper_.GetTransform();
   }
   gfx::Transform GetInverseRootTransform() const override {
     return transformer_helper_.GetInverseTransform();
   }
   void UpdateRootWindowSize(const gfx::Size& host_size) override {
     transformer_helper_.UpdateWindowSize(host_size);
   }
 
+  // ui::internal::InputMethodDelegate:
+  bool DispatchKeyEventPostIME(const ui::KeyEvent& event) override {
+    ui::KeyEvent event_copy(event);
+    input_method_handler()->SetPostIME(true);
+    ui::EventSource::DeliverEventToProcessor(&event_copy);
+    input_method_handler()->SetPostIME(false);
+    return event_copy.handled();
+  }
+
+  // ui::EventSource:
+  ui::EventDispatchDetails DeliverEventToProcessor(ui::Event* event) override {
+    return ui::EventSource::DeliverEventToProcessor(event);
+  }
+
   bool fullscreen_;
   RECT saved_window_rect_;
   DWORD saved_window_style_;
   DWORD saved_window_ex_style_;
 
   TransformerHelper transformer_helper_;
 
   DISALLOW_COPY_AND_ASSIGN(AshWindowTreeHostWin);
 };
 
 }  // namespace
 
 AshWindowTreeHost* AshWindowTreeHost::Create(
     const AshWindowTreeHostInitParams& init_params) {
   if (base::win::GetVersion() >= base::win::VERSION_WIN7 &&
       !base::CommandLine::ForCurrentProcess()->HasSwitch(
           ash::switches::kForceAshToDesktop))
     return new AshRemoteWindowTreeHostWin(init_params.remote_hwnd);
 
   return new AshWindowTreeHostWin(init_params.initial_bounds);
 }
 
 }  // namespace ash