[FYI] All-in-one OnCandidateWindow{Show,Update,Hide}

content/renderer/render_widget.cc

 // Copyright (c) 2012 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 "content/renderer/render_widget.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
@@ skipping 587 matching lines @@
     IPC_MESSAGE_HANDLER(ViewMsg_Close, OnClose)
     IPC_MESSAGE_HANDLER(ViewMsg_CreatingNew_ACK, OnCreatingNewAck)
     IPC_MESSAGE_HANDLER(ViewMsg_Resize, OnResize)
     IPC_MESSAGE_HANDLER(ViewMsg_ChangeResizeRect, OnChangeResizeRect)
     IPC_MESSAGE_HANDLER(ViewMsg_WasHidden, OnWasHidden)
     IPC_MESSAGE_HANDLER(ViewMsg_WasShown, OnWasShown)
     IPC_MESSAGE_HANDLER(ViewMsg_WasSwappedOut, OnWasSwappedOut)
     IPC_MESSAGE_HANDLER(ViewMsg_UpdateRect_ACK, OnUpdateRectAck)
     IPC_MESSAGE_HANDLER(ViewMsg_SwapBuffers_ACK, OnSwapBuffersComplete)
     IPC_MESSAGE_HANDLER(ViewMsg_SetInputMethodActive, OnSetInputMethodActive)
+    IPC_MESSAGE_HANDLER(ViewMsg_CandidateWindowShow, OnCandidateWindowShow)
+    IPC_MESSAGE_HANDLER(ViewMsg_CandidateWindowUpdate, OnCandidateWindowUpdate)
+    IPC_MESSAGE_HANDLER(ViewMsg_CandidateWindowHide, OnCandidateWindowHide)
     IPC_MESSAGE_HANDLER(ViewMsg_ImeSetComposition, OnImeSetComposition)
     IPC_MESSAGE_HANDLER(ViewMsg_ImeConfirmComposition, OnImeConfirmComposition)
     IPC_MESSAGE_HANDLER(ViewMsg_PaintAtSize, OnPaintAtSize)
     IPC_MESSAGE_HANDLER(ViewMsg_Repaint, OnRepaint)
     IPC_MESSAGE_HANDLER(ViewMsg_SyntheticGestureCompleted,
                         OnSyntheticGestureCompleted)
     IPC_MESSAGE_HANDLER(ViewMsg_SetTextDirection, OnSetTextDirection)
     IPC_MESSAGE_HANDLER(ViewMsg_Move_ACK, OnRequestMoveAck)
     IPC_MESSAGE_HANDLER(ViewMsg_UpdateScreenRects, OnUpdateScreenRects)
 #if defined(OS_ANDROID)
@@ skipping 1449 matching lines @@
   return resizer_rect_;
 }
 
 void RenderWidget::OnSetInputMethodActive(bool is_active) {
   // To prevent this renderer process from sending unnecessary IPC messages to
   // a browser process, we permit the renderer process to send IPC messages
   // only during the input method attached to the browser process is active.
   input_method_is_active_ = is_active;
 }
 
+void RenderWidget::OnCandidateWindowShow() {
+  webwidget_->didShowCandidateWindow();
+}
+
+void RenderWidget::OnCandidateWindowUpdate() {
+  webwidget_->didUpdateCandidateWindow();
+}
+
+void RenderWidget::OnCandidateWindowHide() {
+  webwidget_->didHideCandidateWindow();
+}
+
 void RenderWidget::OnImeSetComposition(
     const string16& text,
     const std::vector<WebCompositionUnderline>& underlines,
     int selection_start, int selection_end) {
   if (!ShouldHandleImeEvent())
     return;
   ImeEventGuard guard(this);
   if (!webwidget_->setComposition(
       text, WebVector<WebCompositionUnderline>(underlines),
       selection_start, selection_end)) {
@@ skipping 755 matching lines @@
           GetURLForGraphicsContext3D(),
           gpu_channel_host.get(),
           use_echo_for_swap_ack,
           attributes,
           false /* bind generates resources */,
           limits));
   return context.Pass();
 }
 
 }  // namespace content