Rename RenderWidgetHostHWND to RenderWidgetHostViewWin for consistency with other view-related classes.

No logic change.
Review URL: http://codereview.chromium.org/7310

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@3379 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 0 insertions, 875 deletions

diff --git a/chrome/browser/render_widget_host_hwnd.cc b/chrome/browser/render_widget_host_hwnd.cc
deleted file mode 100644
index bc49e62..0000000
--- a/chrome/browser/render_widget_host_hwnd.cc
+++ /dev/null
@@ -1,875 +0,0 @@
-// Copyright (c) 2006-2008 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 "chrome/browser/render_widget_host_hwnd.h"
-
-#include "base/command_line.h"
-#include "base/gfx/gdi_util.h"
-#include "base/gfx/rect.h"
-#include "base/histogram.h"
-#include "base/win_util.h"
-#include "chrome/browser/browser_accessibility.h"
-#include "chrome/browser/browser_accessibility_manager.h"
-#include "chrome/browser/render_process_host.h"
-// TODO(beng): (Cleanup) we should not need to include this file... see comment
-//             in |DidBecomeSelected|.
-#include "chrome/browser/render_view_host.h"
-#include "chrome/browser/render_widget_host.h"
-#include "chrome/common/chrome_constants.h"
-#include "chrome/common/chrome_switches.h"
-#include "chrome/common/l10n_util.h"
-#include "chrome/common/plugin_messages.h"
-#include "chrome/common/win_util.h"
-#include "chrome/views/hwnd_view_container.h"
-#include "webkit/glue/webcursor.h"
-
-// Tooltips will wrap after this width. Yes, wrap. Imagine that!
-static const int kTooltipMaxWidthPixels = 300;
-
-// Maximum number of characters we allow in a tooltip.
-static const int kMaxTooltipLength = 1024;
-
-///////////////////////////////////////////////////////////////////////////////
-// RenderWidgetHostHWND, public:
-
-RenderWidgetHostHWND::RenderWidgetHostHWND(
-    RenderWidgetHost* render_widget_host)
-    : RenderWidgetHostView(),
-      render_widget_host_(render_widget_host),
-      real_cursor_(LoadCursor(NULL, IDC_ARROW)),
-      real_cursor_type_(WebCursor::ARROW),
-      track_mouse_leave_(false),
-      ime_notification_(false),
-      is_hidden_(false),
-      close_on_deactivate_(false),
-      tooltip_hwnd_(NULL),
-      tooltip_showing_(false),
-      shutdown_factory_(this),
-      parent_hwnd_(NULL),
-      is_loading_(false) {
-}
-
-RenderWidgetHostHWND::~RenderWidgetHostHWND() {
-  if (real_cursor_type_ == WebCursor::CUSTOM)
-    DestroyIcon(real_cursor_);
-  ResetTooltip();
-}
-
-///////////////////////////////////////////////////////////////////////////////
-// RenderWidgetHostHWND, RenderWidgetHostView implementation:
-
-void RenderWidgetHostHWND::DidBecomeSelected() {
-  if (!is_hidden_)
-    return;
-
-  is_hidden_ = false;
-  EnsureTooltip();
-  render_widget_host_->WasRestored();
-}
-
-void RenderWidgetHostHWND::WasHidden() {
-  if (is_hidden_)
-    return;
-
-  // If we receive any more paint messages while we are hidden, we want to
-  // ignore them so we don't re-allocate the backing store.  We will paint
-  // everything again when we become selected again.
-  is_hidden_ = true;
-
-  ResetTooltip();
-
-  // If we have a renderer, then inform it that we are being hidden so it can
-  // reduce its resource utilization.
-  render_widget_host_->WasHidden();
-
-  // TODO(darin): what about constrained windows?  it doesn't look like they
-  // see a message when their parent is hidden.  maybe there is something more
-  // generic we can do at the TabContents API level instead of relying on
-  // Windows messages.
-}
-
-void RenderWidgetHostHWND::SetSize(const gfx::Size& size) {
-  if (is_hidden_)
-    return;
-
-  UINT swp_flags = SWP_NOSENDCHANGING | SWP_NOOWNERZORDER | SWP_NOCOPYBITS |
-      SWP_NOMOVE | SWP_NOZORDER | SWP_NOREDRAW | SWP_NOACTIVATE |
-      SWP_DEFERERASE;
-  SetWindowPos(NULL, 0, 0, size.width(), size.height(), swp_flags);
-  render_widget_host_->WasResized();
-  EnsureTooltip();
-}
-
-HWND RenderWidgetHostHWND::GetPluginHWND() {
-  return m_hWnd;
-}
-
-void RenderWidgetHostHWND::ForwardMouseEventToRenderer(UINT message,
-                                                       WPARAM wparam,
-                                                       LPARAM lparam) {
-  WebMouseEvent event(m_hWnd, message, wparam, lparam);
-  switch (event.type) {
-    case WebInputEvent::MOUSE_MOVE:
-      TrackMouseLeave(true);
-      break;
-    case WebInputEvent::MOUSE_LEAVE:
-      TrackMouseLeave(false);
-      break;
-    case WebInputEvent::MOUSE_DOWN:
-      SetCapture();
-      break;
-    case WebInputEvent::MOUSE_UP:
-      if (GetCapture() == m_hWnd)
-        ReleaseCapture();
-      break;
-  }
-
-  render_widget_host_->ForwardMouseEvent(event);
-
-  if (event.type == WebInputEvent::MOUSE_DOWN) {
-    // This is a temporary workaround for bug 765011 to get focus when the
-    // mouse is clicked. This happens after the mouse down event is sent to
-    // the renderer because normally Windows does a WM_SETFOCUS after
-    // WM_LBUTTONDOWN.
-    SetFocus();
-  }
-}
-
-void RenderWidgetHostHWND::Focus() {
-  if (IsWindow())
-    SetFocus();
-}
-
-void RenderWidgetHostHWND::Blur() {
-  ChromeViews::FocusManager* focus_manager =
-    ChromeViews::FocusManager::GetFocusManager(GetParent());
-  // We don't have a FocusManager if we are hidden.
-  if (focus_manager && render_widget_host_->CanBlur())
-    focus_manager->ClearFocus();
-}
-
-bool RenderWidgetHostHWND::HasFocus() {
-  return ::GetFocus() == m_hWnd;
-}
-
-void RenderWidgetHostHWND::Show() {
-  DCHECK(parent_hwnd_);
-  SetParent(parent_hwnd_);
-  ShowWindow(SW_SHOW);
-
-  DidBecomeSelected();
-}
-
-void RenderWidgetHostHWND::Hide() {
-  if (::GetFocus() == m_hWnd)
-    ::SetFocus(NULL);
-  ShowWindow(SW_HIDE);
-  parent_hwnd_ = GetParent();
-  // Orphan the window so we stop receiving messages.
-  SetParent(NULL);
-
-  WasHidden();
-}
-
-gfx::Rect RenderWidgetHostHWND::GetViewBounds() const {
-  CRect window_rect;
-  GetWindowRect(&window_rect);
-  return gfx::Rect(window_rect);
-}
-
-void RenderWidgetHostHWND::UpdateCursor(const WebCursor& cursor) {
-  static HINSTANCE module_handle =
-      GetModuleHandle(chrome::kBrowserResourcesDll);
-
-  // If the last active cursor was a custom cursor, we need to destroy
-  // it before setting the new one.
-  if (real_cursor_type_ == WebCursor::CUSTOM)
-    DestroyIcon(real_cursor_);
-
-  real_cursor_type_ = cursor.type();
-  if (real_cursor_type_ == cursor.WebCursor::CUSTOM) {
-    real_cursor_ = cursor.GetCustomCursor();
-  } else {
-    // We cannot pass in NULL as the module handle as this would only
-    // work for standard win32 cursors. We can also receive cursor
-    // types which are defined as webkit resources. We need to specify
-    // the module handle of chrome.dll while loading these cursors.
-    real_cursor_ = cursor.GetCursor(module_handle);
-  }
-
-  UpdateCursorIfOverSelf();
-}
-
-void RenderWidgetHostHWND::UpdateCursorIfOverSelf() {
-  static HINSTANCE module_handle =
-      GetModuleHandle(chrome::kBrowserResourcesDll);
-
-  HCURSOR display_cursor = real_cursor_;
-  // If a page is in the loading state, we want to show the Arrow+Hourglass
-  // cursor only when the current cursor is the ARROW cursor. In all other
-  // cases we should continue to display the current cursor.
-  if (is_loading_ && (real_cursor_type_ == WebCursor::ARROW)) {
-    WebCursor page_loading_cursor(WebCursor::APPSTARTING);
-    display_cursor = page_loading_cursor.GetCursor(module_handle);
-  }
-
-  // If the mouse is over our HWND, then update the cursor state immediately.
-  CPoint pt;
-  GetCursorPos(&pt);
-  if (WindowFromPoint(pt) == m_hWnd)
-    SetCursor(display_cursor);
-}
-
-void RenderWidgetHostHWND::SetIsLoading(bool is_loading) {
-  is_loading_ = is_loading;
-  UpdateCursorIfOverSelf();
-}
-
-void RenderWidgetHostHWND::IMEUpdateStatus(ViewHostMsg_ImeControl control,
-                                           int x, int y) {
-  if (control == IME_DISABLE) {
-    ime_input_.DisableIME(m_hWnd);
-  } else {
-    ime_input_.EnableIME(m_hWnd, x, y, control == IME_COMPLETE_COMPOSITION);
-  }
-}
-
-void RenderWidgetHostHWND::DidPaintRect(const gfx::Rect& rect) {
-  if (is_hidden_)
-    return;
-
-  RECT invalid_rect = rect.ToRECT();
-
-  // Paint the invalid region synchronously.  Our caller will not paint again
-  // until we return, so by painting to the screen here, we ensure effective
-  // rate-limiting of backing store updates.  This helps a lot on pages that
-  // have animations or fairly expensive layout (e.g., google maps).
-  //
-  // Please refer to the RenderWidgetHostHWND::DidScrollRect function for the
-  // reasoning behind the combination of flags passed to RedrawWindow.
-  //
-  RedrawWindow(&invalid_rect, NULL,
-      RDW_INVALIDATE | RDW_UPDATENOW | RDW_ALLCHILDREN | RDW_FRAME);
-}
-
-void RenderWidgetHostHWND::DidScrollRect(
-    const gfx::Rect& rect, int dx, int dy) {
-  if (is_hidden_)
-    return;
-
-  // We need to pass in SW_INVALIDATE to ScrollWindowEx.  The MSDN
-  // documentation states that it only applies to the HRGN argument, which is
-  // wrong.  Not passing in this flag does not invalidate the region which was
-  // scrolled from, thus causing painting issues.
-  RECT clip_rect = rect.ToRECT();
-  ScrollWindowEx(dx, dy, NULL, &clip_rect, NULL, NULL, SW_INVALIDATE);
-
-  RECT invalid_rect = {0};
-  GetUpdateRect(&invalid_rect);
-
-  // Paint the invalid region synchronously.  Our caller will not paint again
-  // until we return, so by painting to the screen here, we ensure effective
-  // rate-limiting of backing store updates.  This helps a lot on pages that
-  // have animations or fairly expensive layout (e.g., google maps).
-  //
-  // Our RenderWidgetHostHWND does not have a non-client area, whereas the
-  // children (plugin windows) may.  If we don't pass in RDW_FRAME then the
-  // children don't receive WM_NCPAINT messages while scrolling, which causes
-  // painting problems (http://b/issue?id=923945).  We need to pass
-  // RDW_INVALIDATE as it is required for RDW_FRAME to work.
-  //
-  RedrawWindow(&invalid_rect, NULL,
-      RDW_INVALIDATE | RDW_UPDATENOW | RDW_ALLCHILDREN | RDW_FRAME);
-}
-
-void RenderWidgetHostHWND::RendererGone() {
-  // TODO(darin): keep this around, and draw sad-tab into it.
-  UpdateCursorIfOverSelf();
-  DestroyWindow();
-}
-
-void RenderWidgetHostHWND::Destroy() {
-  // We've been told to destroy.
-  // By clearing close_on_deactivate_, we prevent further deactivations
-  // (caused by windows messages resulting from the DestroyWindow) from
-  // triggering further destructions.  The deletion of this is handled by
-  // OnFinalMessage();
-  close_on_deactivate_ = false;
-  DestroyWindow();
-}
-
-void RenderWidgetHostHWND::SetTooltipText(const std::wstring& tooltip_text) {
-  if (tooltip_text != tooltip_text_) {
-    tooltip_text_ = tooltip_text;
-
-    // Clamp the tooltip length to kMaxTooltipLength so that we don't
-    // accidentally DOS the user with a mega tooltip (since Windows doesn't seem
-    // to do this itself).
-    if (tooltip_text_.length() > kMaxTooltipLength)
-      tooltip_text_ = tooltip_text_.substr(0, kMaxTooltipLength);
-
-    // Need to check if the tooltip is already showing so that we don't
-    // immediately show the tooltip with no delay when we move the mouse from
-    // a region with no tooltip to a region with a tooltip.
-    if (::IsWindow(tooltip_hwnd_) && tooltip_showing_) {
-      ::SendMessage(tooltip_hwnd_, TTM_POP, 0, 0);
-      ::SendMessage(tooltip_hwnd_, TTM_POPUP, 0, 0);
-    }
-  } else {
-    // Make sure the tooltip gets closed after TTN_POP gets sent. For some
-    // reason this doesn't happen automatically, so moving the mouse around
-    // within the same link/image/etc doesn't cause the tooltip to re-appear.
-    if (!tooltip_showing_) {
-      if (::IsWindow(tooltip_hwnd_))
-        ::SendMessage(tooltip_hwnd_, TTM_POP, 0, 0);
-    }
-  }
-}
-
-///////////////////////////////////////////////////////////////////////////////
-// RenderWidgetHostHWND, private:
-
-LRESULT RenderWidgetHostHWND::OnCreate(CREATESTRUCT* create_struct) {
-  // Call the WM_INPUTLANGCHANGE message handler to initialize the input locale
-  // of a browser process.
-  OnInputLangChange(0, 0);
-  return 0;
-}
-
-void RenderWidgetHostHWND::OnActivate(UINT action, BOOL minimized,
-                                      HWND window) {
-  // If the container is a popup, clicking elsewhere on screen should close the
-  // popup.
-  if (close_on_deactivate_ && action == WA_INACTIVE) {
-    // Send a windows message so that any derived classes
-    // will get a change to override the default handling
-    SendMessage(WM_CANCELMODE);
-  }
-}
-
-void RenderWidgetHostHWND::OnDestroy() {
-  ResetTooltip();
-  TrackMouseLeave(false);
-}
-
-void RenderWidgetHostHWND::OnPaint(HDC dc) {
-  DCHECK(render_widget_host_->process()->channel());
-
-  CPaintDC paint_dc(m_hWnd);
-  HBRUSH white_brush = reinterpret_cast<HBRUSH>(GetStockObject(WHITE_BRUSH));
-
-  RenderWidgetHost::BackingStore* backing_store =
-      render_widget_host_->GetBackingStore();
-
-  if (backing_store) {
-    gfx::Rect damaged_rect(paint_dc.m_ps.rcPaint);
-
-    gfx::Rect bitmap_rect(
-        0, 0, backing_store->size().width(), backing_store->size().height());
-
-    gfx::Rect paint_rect = bitmap_rect.Intersect(damaged_rect);
-    if (!paint_rect.IsEmpty()) {
-      BitBlt(paint_dc.m_hDC,
-             paint_rect.x(),
-             paint_rect.y(),
-             paint_rect.width(),
-             paint_rect.height(),
-             backing_store->dc(),
-             paint_rect.x(),
-             paint_rect.y(),
-             SRCCOPY);
-    }
-
-    // Fill the remaining portion of the damaged_rect with white
-    if (damaged_rect.right() > bitmap_rect.right()) {
-      RECT r;
-      r.left = std::max(bitmap_rect.right(), damaged_rect.x());
-      r.right = damaged_rect.right();
-      r.top = damaged_rect.y();
-      r.bottom = std::min(bitmap_rect.bottom(), damaged_rect.bottom());
-      paint_dc.FillRect(&r, white_brush);
-    }
-    if (damaged_rect.bottom() > bitmap_rect.bottom()) {
-      RECT r;
-      r.left = damaged_rect.x();
-      r.right = damaged_rect.right();
-      r.top = std::max(bitmap_rect.bottom(), damaged_rect.y());
-      r.bottom = damaged_rect.bottom();
-      paint_dc.FillRect(&r, white_brush);
-    }
-    if (!whiteout_start_time_.is_null()) {
-      TimeDelta whiteout_duration = TimeTicks::Now() - whiteout_start_time_;
-      UMA_HISTOGRAM_TIMES(L"MPArch.RWHH_WhiteoutDuration", whiteout_duration);
-      // Reset the start time to 0 so that we start recording again the next
-      // time the backing store is NULL...
-      whiteout_start_time_ = TimeTicks();
-    }
-  } else {
-    paint_dc.FillRect(&paint_dc.m_ps.rcPaint, white_brush);
-    if (whiteout_start_time_.is_null())
-      whiteout_start_time_ = TimeTicks::Now();
-  }
-}
-
-void RenderWidgetHostHWND::OnNCPaint(HRGN update_region) {
-  // Do nothing.  This suppresses the resize corner that Windows would
-  // otherwise draw for us.
-}
-
-LRESULT RenderWidgetHostHWND::OnEraseBkgnd(HDC dc) {
-  return 1;
-}
-
-LRESULT RenderWidgetHostHWND::OnSetCursor(HWND window, UINT hittest_code,
-                                          UINT mouse_message_id) {
-  UpdateCursorIfOverSelf();
-  return 0;
-}
-
-void RenderWidgetHostHWND::OnSetFocus(HWND window) {
-  render_widget_host_->Focus();
-}
-
-void RenderWidgetHostHWND::OnKillFocus(HWND window) {
-  render_widget_host_->Blur();
-}
-
-void RenderWidgetHostHWND::OnCaptureChanged(HWND window) {
-  render_widget_host_->LostCapture();
-}
-
-void RenderWidgetHostHWND::OnCancelMode() {
-  render_widget_host_->LostCapture();
-
-  if (close_on_deactivate_ && shutdown_factory_.empty()) {
-    // Dismiss popups and menus.  We do this asynchronously to avoid changing
-    // activation within this callstack, which may interfere with another window
-    // being activated.  We can synchronously hide the window, but we need to
-    // not change activation while doing so.
-    SetWindowPos(NULL, 0, 0, 0, 0,
-                 SWP_HIDEWINDOW | SWP_NOACTIVATE | SWP_NOMOVE |
-                 SWP_NOREPOSITION | SWP_NOSIZE | SWP_NOZORDER);
-    MessageLoop::current()->PostTask(FROM_HERE,
-        shutdown_factory_.NewRunnableMethod(
-            &RenderWidgetHostHWND::ShutdownHost));
-  }
-}
-
-void RenderWidgetHostHWND::OnInputLangChange(DWORD character_set,
-                                             HKL input_language_id) {
-  // Send the given Locale ID to the ImeInput object and retrieves whether
-  // or not the current input context has IMEs.
-  // If the current input context has IMEs, a browser process has to send a
-  // request to a renderer process that it needs status messages about
-  // the focused edit control from the renderer process.
-  // On the other hand, if the current input context does not have IMEs, the
-  // browser process also has to send a request to the renderer process that
-  // it does not need the status messages any longer.
-  // To minimize the number of this notification request, we should check if
-  // the browser process is actually retrieving the status messages (this
-  // state is stored in ime_notification_) and send a request only if the
-  // browser process has to update this status, its details are listed below:
-  // * If a browser process is not retrieving the status messages,
-  //   (i.e. ime_notification_ == false),
-  //   send this request only if the input context does have IMEs,
-  //   (i.e. ime_status == true);
-  //   When it successfully sends the request, toggle its notification status,
-  //   (i.e.ime_notification_ = !ime_notification_ = true).
-  // * If a browser process is retrieving the status messages
-  //   (i.e. ime_notification_ == true),
-  //   send this request only if the input context does not have IMEs,
-  //   (i.e. ime_status == false).
-  //   When it successfully sends the request, toggle its notification status,
-  //   (i.e.ime_notification_ = !ime_notification_ = false).
-  // To analyze the above actions, we can optimize them into the ones
-  // listed below:
-  // 1 Sending a request only if ime_status_ != ime_notification_, and;
-  // 2 Copying ime_status to ime_notification_ if it sends the request
-  //   successfully (because Action 1 shows ime_status = !ime_notification_.)
-  bool ime_status = ime_input_.SetInputLanguage();
-  if (ime_status != ime_notification_) {
-    if (Send(new ViewMsg_ImeSetInputMode(render_widget_host_->routing_id(),
-                                         ime_status))) {
-      ime_notification_ = ime_status;
-    }
-  }
-}
-
-void RenderWidgetHostHWND::OnThemeChanged() {
-  render_widget_host_->SystemThemeChanged();
-}
-
-LRESULT RenderWidgetHostHWND::OnNotify(int w_param, NMHDR* header) {
-  if (tooltip_hwnd_ == NULL)
-    return 0;
-
-  switch (header->code) {
-    case TTN_GETDISPINFO: {
-      NMTTDISPINFOW* tooltip_info = reinterpret_cast<NMTTDISPINFOW*>(header);
-      tooltip_info->szText[0] = L'\0';
-      tooltip_info->lpszText = const_cast<wchar_t*>(tooltip_text_.c_str());
-      ::SendMessage(
-        tooltip_hwnd_, TTM_SETMAXTIPWIDTH, 0, kTooltipMaxWidthPixels);
-      SetMsgHandled(TRUE);
-      break;
-                          }
-    case TTN_POP:
-      tooltip_showing_ = false;
-      SetMsgHandled(TRUE);
-      break;
-    case TTN_SHOW:
-      tooltip_showing_ = true;
-      SetMsgHandled(TRUE);
-      break;
-  }
-  return 0;
-}
-
-LRESULT RenderWidgetHostHWND::OnImeSetContext(
-    UINT message, WPARAM wparam, LPARAM lparam, BOOL& handled) {
-  // We need status messages about the focused input control from a
-  // renderer process when:
-  //   * the current input context has IMEs, and;
-  //   * an application is activated.
-  // This seems to tell we should also check if the current input context has
-  // IMEs before sending a request, however, this WM_IME_SETCONTEXT is
-  // fortunately sent to an application only while the input context has IMEs.
-  // Therefore, we just start/stop status messages according to the activation
-  // status of this application without checks.
-  bool activated = (wparam == TRUE);
-  if (Send(new ViewMsg_ImeSetInputMode(
-      render_widget_host_->routing_id(), activated))) {
-    ime_notification_ = activated;
-  }
-
-  if (ime_notification_)
-    ime_input_.CreateImeWindow(m_hWnd);
-
-  ime_input_.CleanupComposition(m_hWnd);
-  ime_input_.SetImeWindowStyle(m_hWnd, message, wparam, lparam, &handled);
-  return 0;
-}
-
-LRESULT RenderWidgetHostHWND::OnImeStartComposition(
-    UINT message, WPARAM wparam, LPARAM lparam, BOOL& handled) {
-  // Reset the composition status and create IME windows.
-  ime_input_.CreateImeWindow(m_hWnd);
-  ime_input_.ResetComposition(m_hWnd);
-  // We have to prevent WTL from calling ::DefWindowProc() because the function
-  // calls ::ImmSetCompositionWindow() and ::ImmSetCandidateWindow() to
-  // over-write the position of IME windows.
-  handled = TRUE;
-  return 0;
-}
-
-LRESULT RenderWidgetHostHWND::OnImeComposition(
-    UINT message, WPARAM wparam, LPARAM lparam, BOOL& handled) {
-  // At first, update the position of the IME window.
-  ime_input_.UpdateImeWindow(m_hWnd);
-
-  // Retrieve the result string and its attributes of the ongoing composition
-  // and send it to a renderer process.
-  ImeComposition composition;
-  if (ime_input_.GetResult(m_hWnd, lparam, &composition)) {
-    Send(new ViewMsg_ImeSetComposition(render_widget_host_->routing_id(),
-                                       composition.string_type,
-                                       composition.cursor_position,
-                                       composition.target_start,
-                                       composition.target_end,
-                                       composition.ime_string));
-    ime_input_.ResetComposition(m_hWnd);
-    // Fall though and try reading the composition string.
-    // Japanese IMEs send a message containing both GCS_RESULTSTR and
-    // GCS_COMPSTR, which means an ongoing composition has been finished
-    // by the start of another composition.
-  }
-  // Retrieve the composition string and its attributes of the ongoing
-  // composition and send it to a renderer process.
-  if (ime_input_.GetComposition(m_hWnd, lparam, &composition)) {
-    Send(new ViewMsg_ImeSetComposition(render_widget_host_->routing_id(),
-                                       composition.string_type,
-                                       composition.cursor_position,
-                                       composition.target_start,
-                                       composition.target_end,
-                                       composition.ime_string));
-  }
-  // We have to prevent WTL from calling ::DefWindowProc() because we do not
-  // want for the IMM (Input Method Manager) to send WM_IME_CHAR messages.
-  handled = TRUE;
-  return 0;
-}
-
-LRESULT RenderWidgetHostHWND::OnImeEndComposition(
-    UINT message, WPARAM wparam, LPARAM lparam, BOOL& handled) {
-  if (ime_input_.is_composing()) {
-    // A composition has been ended while there is an ongoing composition,
-    // i.e. the ongoing composition has been canceled.
-    // We need to reset the composition status both of the ImeInput object and
-    // of the renderer process.
-    std::wstring empty_string;
-    Send(new ViewMsg_ImeSetComposition(render_widget_host_->routing_id(),
-                                       0, -1, -1, -1, empty_string));
-    ime_input_.ResetComposition(m_hWnd);
-  }
-  ime_input_.DestroyImeWindow(m_hWnd);
-  // Let WTL call ::DefWindowProc() and release its resources.
-  handled = FALSE;
-  return 0;
-}
-
-LRESULT RenderWidgetHostHWND::OnMouseEvent(UINT message, WPARAM wparam,
-                                           LPARAM lparam, BOOL& handled) {
-  handled = TRUE;
-
-  if (::IsWindow(tooltip_hwnd_)) {
-    // Forward mouse events through to the tooltip window
-    MSG msg;
-    msg.hwnd = m_hWnd;
-    msg.message = message;
-    msg.wParam = wparam;
-    msg.lParam = lparam;
-    SendMessage(tooltip_hwnd_, TTM_RELAYEVENT, NULL,
-                reinterpret_cast<LPARAM>(&msg));
-  }
-
-  // TODO(jcampan): I am not sure if we should forward the message to the
-  // WebContents first in the case of popups.  If we do, we would need to
-  // convert the click from the popup window coordinates to the WebContents'
-  // window coordinates. For now we don't forward the message in that case to
-  // address bug #907474.
-  // Note: GetParent() on popup windows returns the top window and not the
-  // parent the window was created with (the parent and the owner of the popup
-  // is the first non-child view of the view that was specified to the create
-  // call).  So the WebContents window would have to be specified to the
-  // RenderViewHostHWND as there is no way to retrieve it from the HWND.
-  if (!close_on_deactivate_) {  // Don't forward if the container is a popup.
-    switch (message) {
-      case WM_LBUTTONDOWN:
-      case WM_MBUTTONDOWN:
-      case WM_MOUSEMOVE:
-      case WM_MOUSELEAVE:
-      case WM_RBUTTONDOWN: {
-        // Give the WebContents first crack at the message. It may want to
-        // prevent forwarding to the renderer if some higher level browser
-        // functionality is invoked.
-        if (SendMessage(GetParent(), message, wparam, lparam) != 0)
-          return 1;
-      }
-    }
-  }
-
-  ForwardMouseEventToRenderer(message, wparam, lparam);
-  return 0;
-}
-
-LRESULT RenderWidgetHostHWND::OnKeyEvent(UINT message, WPARAM wparam,
-                                         LPARAM lparam, BOOL& handled) {
-  handled = TRUE;
-
-  // If we are a pop-up, forward tab related messages to our parent HWND, so
-  // that we are dismissed appropriately and so that the focus advance in our
-  // parent.
-  // TODO(jcampan): http://b/issue?id=1192881 Could be abstracted in the
-  //                FocusManager.
-  if (close_on_deactivate_ &&
-      (((message == WM_KEYDOWN || message == WM_KEYUP) && (wparam == VK_TAB)) ||
-        (message == WM_CHAR && wparam == L'\t'))) {
-    DCHECK(parent_hwnd_);
-    // First close the pop-up.
-    SendMessage(WM_CANCELMODE);
-    // Then move the focus by forwarding the tab key to the parent.
-    return ::SendMessage(parent_hwnd_, message, wparam, lparam);
-  }
-
-  render_widget_host_->ForwardKeyboardEvent(
-      WebKeyboardEvent(m_hWnd, message, wparam, lparam));
-  return 0;
-}
-
-LRESULT RenderWidgetHostHWND::OnWheelEvent(UINT message, WPARAM wparam,
-                                           LPARAM lparam, BOOL& handled) {
-  // Workaround for Thinkpad mousewheel driver. We get mouse wheel/scroll
-  // messages even if we are not in the foreground. So here we check if
-  // we have any owned popup windows in the foreground and dismiss them.
-  if (m_hWnd != GetForegroundWindow()) {
-    HWND toplevel_hwnd = ::GetAncestor(m_hWnd, GA_ROOT);
-    EnumThreadWindows(
-        GetCurrentThreadId(),
-        DismissOwnedPopups,
-        reinterpret_cast<LPARAM>(toplevel_hwnd));
-  }
-
-  // This is a bit of a hack, but will work for now since we don't want to
-  // pollute this object with WebContents-specific functionality...
-  bool handled_by_webcontents = false;
-  if (GetParent()) {
-    // Use a special reflected message to break recursion. If we send
-    // WM_MOUSEWHEEL, the focus manager subclass of web contents will
-    // route it back here.
-    MSG new_message = {0};
-    new_message.hwnd = m_hWnd;
-    new_message.message = message;
-    new_message.wParam = wparam;
-    new_message.lParam = lparam;
-
-    handled_by_webcontents =
-        !!::SendMessage(GetParent(), ChromeViews::kReflectedMessage, 0,
-                        reinterpret_cast<LPARAM>(&new_message));
-  }
-
-  if (!handled_by_webcontents) {
-    render_widget_host_->ForwardWheelEvent(
-        WebMouseWheelEvent(m_hWnd, message, wparam, lparam));
-  }
-  handled = TRUE;
-  return 0;
-}
-
-LRESULT RenderWidgetHostHWND::OnMouseActivate(UINT, WPARAM, LPARAM,
-                                              BOOL& handled) {
-  // We handle WM_MOUSEACTIVATE to set focus to the underlying plugin
-  // child window. This is to ensure that keyboard events are received
-  // by the plugin. The correct way to fix this would be send over
-  // an event to the renderer which would then eventually send over
-  // a setFocus call to the plugin widget. This would ensure that
-  // the renderer (webkit) knows about the plugin widget receiving
-  // focus.
-  // TODO(iyengar) Do the right thing as per the above comment.
-  POINT cursor_pos = {0};
-  ::GetCursorPos(&cursor_pos);
-  MapWindowPoints(m_hWnd, &cursor_pos, 1);
-  HWND child_window = ::RealChildWindowFromPoint(m_hWnd, cursor_pos);
-  if (::IsWindow(child_window)) {
-    ::SetFocus(child_window);
-    return MA_NOACTIVATE;
-  } else {
-    handled = FALSE;
-    return MA_ACTIVATE;
-  }
-}
-
-LRESULT RenderWidgetHostHWND::OnGetObject(UINT message, WPARAM wparam,
-                                          LPARAM lparam, BOOL& handled) {
-  LRESULT reference_result = static_cast<LRESULT>(0L);
-
-  // Accessibility readers will send an OBJID_CLIENT message.
-  if (OBJID_CLIENT == lparam) {
-    // If our MSAA DOM root is already created, reuse that pointer. Otherwise,
-    // create a new one.
-    if (!browser_accessibility_root_) {
-      CComObject<BrowserAccessibility>* accessibility = NULL;
-
-      if (!SUCCEEDED(CComObject<BrowserAccessibility>::CreateInstance(
-              &accessibility)) || !accessibility) {
-        // Return with failure.
-        return static_cast<LRESULT>(0L);
-      }
-
-      CComPtr<IAccessible> accessibility_comptr(accessibility);
-
-      // Root id is always 0, to distinguish this particular instance when
-      // mapping to the render-side IAccessible.
-      accessibility->set_iaccessible_id(0);
-
-      // Set the unique member variables of this particular process.
-      accessibility->set_instance_id(
-          BrowserAccessibilityManager::GetInstance()->
-              SetMembers(accessibility, m_hWnd, render_widget_host_));
-
-      // All is well, assign the temp instance to the class smart pointer.
-      browser_accessibility_root_.Attach(accessibility_comptr.Detach());
-
-      if (!browser_accessibility_root_) {
-        // Paranoia check. Return with failure.
-        NOTREACHED();
-        return static_cast<LRESULT>(0L);
-      }
-
-      // Notify that an instance of IAccessible was allocated for m_hWnd.
-      ::NotifyWinEvent(EVENT_OBJECT_CREATE, m_hWnd, OBJID_CLIENT,
-                       CHILDID_SELF);
-    }
-
-    // Create a reference to ViewAccessibility that MSAA will marshall
-    // to the client.
-    reference_result = LresultFromObject(IID_IAccessible, wparam,
-        static_cast<IAccessible*>(browser_accessibility_root_));
-  }
-  return reference_result;
-}
-
-void RenderWidgetHostHWND::OnFinalMessage(HWND window) {
-  render_widget_host_->ViewDestroyed();
-  delete this;
-}
-
-void RenderWidgetHostHWND::TrackMouseLeave(bool track) {
-  if (track == track_mouse_leave_)
-    return;
-  track_mouse_leave_ = track;
-
-  DCHECK(m_hWnd);
-
-  TRACKMOUSEEVENT tme;
-  tme.cbSize = sizeof(TRACKMOUSEEVENT);
-  tme.dwFlags = TME_LEAVE;
-  if (!track_mouse_leave_)
-    tme.dwFlags |= TME_CANCEL;
-  tme.hwndTrack = m_hWnd;
-
-  TrackMouseEvent(&tme);
-}
-
-bool RenderWidgetHostHWND::Send(IPC::Message* message) {
-  return render_widget_host_->Send(message);
-}
-
-void RenderWidgetHostHWND::EnsureTooltip() {
-  UINT message = TTM_NEWTOOLRECT;
-
-  TOOLINFO ti;
-  ti.cbSize = sizeof(ti);
-  ti.hwnd = m_hWnd;
-  ti.uId = 0;
-  if (!::IsWindow(tooltip_hwnd_)) {
-    message = TTM_ADDTOOL;
-    tooltip_hwnd_ = CreateWindowEx(
-        WS_EX_TRANSPARENT | l10n_util::GetExtendedTooltipStyles(),
-        TOOLTIPS_CLASS, NULL, TTS_NOPREFIX, 0, 0, 0, 0, m_hWnd, NULL,
-        NULL, NULL);
-    ti.uFlags = TTF_TRANSPARENT;
-    ti.lpszText = LPSTR_TEXTCALLBACK;
-  }
-
-  CRect cr;
-  GetClientRect(&ti.rect);
-  SendMessage(tooltip_hwnd_, message, NULL, reinterpret_cast<LPARAM>(&ti));
-}
-
-void RenderWidgetHostHWND::ResetTooltip() {
-  if (::IsWindow(tooltip_hwnd_))
-    ::DestroyWindow(tooltip_hwnd_);
-  tooltip_hwnd_ = NULL;
-}
-
-BOOL CALLBACK RenderWidgetHostHWND::DismissOwnedPopups(HWND window,
-                                                       LPARAM arg) {
-  const HWND toplevel_hwnd = reinterpret_cast<HWND>(arg);
-
-  if (::IsWindowVisible(window)) {
-    const HWND owner = ::GetWindow(window, GW_OWNER);
-    if (toplevel_hwnd == owner) {
-      ::PostMessage(window, WM_CANCELMODE, 0, 0);
-    }
-  }
-
-  return TRUE;
-}
-
-void RenderWidgetHostHWND::ShutdownHost() {
-  shutdown_factory_.RevokeAll();
-  render_widget_host_->Shutdown();
-  // Do not touch any members at this point, |this| has been deleted.
-}
-