IME for Mus: Make InputMethodMus use the IME Mojo API.

ui/views/mus/native_widget_mus.cc

 // Copyright 2015 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 "ui/views/mus/native_widget_mus.h"
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
@@ skipping 14 matching lines @@
 #include "ui/aura/window.h"
 #include "ui/aura/window_property.h"
 #include "ui/base/hit_test.h"
 #include "ui/display/display.h"
 #include "ui/display/screen.h"
 #include "ui/events/event.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/path.h"
 #include "ui/native_theme/native_theme_aura.h"
 #include "ui/platform_window/platform_window_delegate.h"
+#include "ui/views/mus/window_manager_connection.h"
 #include "ui/views/mus/window_manager_constants_converters.h"
 #include "ui/views/mus/window_manager_frame_values.h"
 #include "ui/views/mus/window_tree_host_mus.h"
 #include "ui/views/widget/native_widget_aura.h"
 #include "ui/views/widget/widget_delegate.h"
 #include "ui/views/window/custom_frame_view.h"
 #include "ui/wm/core/base_focus_rules.h"
 #include "ui/wm/core/capture_controller.h"
 #include "ui/wm/core/cursor_manager.h"
 #include "ui/wm/core/default_screen_position_client.h"
@@ skipping 635 matching lines @@
 
   ownership_ = params.ownership;
   window_->SetCanFocus(params.activatable ==
                        Widget::InitParams::ACTIVATABLE_YES);
   window_->SetCanAcceptEvents(params.accept_events);
 
   window_tree_host_->AddObserver(this);
   window_tree_host_->InitHost();
   hosted_window->SetProperty(kMusWindow, window_);
 
+  // TODO(moshayedi): crbug.com/641039. Investigate whether there are any cases
+  // where we need input method but don't have the WindowManagerConnection here.
+  if (WindowManagerConnection::Exists()) {
+    window_tree_host_->InitInputMethod(
+        WindowManagerConnection::Get()->connector());
+  }
+
   focus_client_.reset(
       new FocusControllerMus(new FocusRulesImpl(hosted_window)));
 
   aura::client::SetFocusClient(hosted_window, focus_client_.get());
   aura::client::SetActivationClient(hosted_window, focus_client_.get());
   screen_position_client_.reset(new ScreenPositionClientMus(window_));
   aura::client::SetScreenPositionClient(hosted_window,
                                         screen_position_client_.get());
 
   // TODO(erg): Remove this check when ash/mus/move_event_handler.cc's
@@ skipping 729 matching lines @@
 
   gfx::Path mask_path;
   native_widget_delegate_->GetHitTestMask(&mask_path);
   // TODO(jamescook): Use the full path for the mask.
   gfx::Rect mask_rect =
       gfx::ToEnclosingRect(gfx::SkRectToRectF(mask_path.getBounds()));
   window_->SetHitTestMask(mask_rect);
 }
 
 }  // namespace views