Combine the WM_CHAR with WM_KEY* for key event flow.

ui/base/ime/remote_input_method_win.cc

 // Copyright 2013 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/base/ime/remote_input_method_win.h"
 
 #include "base/command_line.h"
 #include "base/observer_list.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/win/metro.h"
@@ skipping 182 matching lines @@
 
     if (event->is_char()) {
       if (text_input_client_) {
         text_input_client_->InsertChar(
             event->GetCharacter(),
             ui::GetModifiersFromKeyState());
       }
       event->StopPropagation();
       return;
     }
-    if (delegate_)
+    if (delegate_) {
       ignore_result(delegate_->DispatchKeyEventPostIME(event));
+      if (text_input_client_ && pending_char_events_.size()) {
+        for (size_t i = 0; i < pending_char_events_.size(); ++i) {
+          text_input_client_->InsertChar(
+              pending_char_events_[i], event->flags());
+        }
+        event->StopPropagation();
+      }
+    }
+    pending_char_events_.clear();
   }
 
   void OnTextInputTypeChanged(const TextInputClient* client) override {
     if (!text_input_client_ || text_input_client_ != client)
       return;
     std::vector<int32> prev_input_scopes;
     std::swap(input_scopes_, prev_input_scopes);
     input_scopes_ = GetInputScopesAsInt(client->GetTextInputType(),
                                         client->GetTextInputMode());
     if (input_scopes_ != prev_input_scopes && remote_delegate_) {
@@ skipping 104 matching lines @@
       // According to the comment in text_input_client.h,
       // TextInputClient::InsertText should never be called when the
       // text input type is TEXT_INPUT_TYPE_NONE.
       for (size_t i = 0; i < text.size(); ++i)
         text_input_client_->InsertChar(text[i], 0);
       return;
     }
     text_input_client_->InsertText(text);
   }
 
+  void OnCharForNextKeyEvent(base::char16 ch) override {
+    pending_char_events_.push_back(ch);
+  }
+
   bool CanSendRemoteNotification(
       const TextInputClient* text_input_client) const {
     return text_input_client_ &&
            text_input_client_ == text_input_client &&
            remote_delegate_;
   }
 
   base::ObserverList<InputMethodObserver> observer_list_;
 
   internal::InputMethodDelegate* delegate_;
   internal::RemoteInputMethodDelegateWin* remote_delegate_;
 
   TextInputClient* text_input_client_;
   std::vector<int32> input_scopes_;
   std::vector<gfx::Rect> composition_character_bounds_;
   bool is_candidate_popup_open_;
   bool is_ime_;
   LANGID langid_;
+  std::vector<base::char16> pending_char_events_;
 
   DISALLOW_COPY_AND_ASSIGN(RemoteInputMethodWin);
 };
 
 }  // namespace
 
 bool IsRemoteInputMethodWinRequired(gfx::AcceleratedWidget widget) {
   // If the remote input method is already registered then don't do it again.
   if (ui::g_public_interface_ && ui::g_private_interface_)
     return false;
@@ skipping 17 matching lines @@
   return make_scoped_ptr(new RemoteInputMethodWin(delegate));
 }
 
 // static
 RemoteInputMethodPrivateWin* RemoteInputMethodPrivateWin::Get(
     InputMethod* input_method) {
   return GetPrivate(input_method);
 }
 
 }  // namespace ui