Revert 52600 - renderer_host: Remove CanBlur method....

chrome/browser/renderer_host/render_widget_host_view_win.cc

 // Copyright (c) 2010 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/renderer_host/render_widget_host_view_win.h"
 
 #include "app/l10n_util.h"
 #include "app/l10n_util_win.h"
 #include "app/resource_bundle.h"
 #include "base/command_line.h"
@@ skipping 505 matching lines @@
 
 void RenderWidgetHostViewWin::Focus() {
   if (IsWindow())
     SetFocus();
 }
 
 void RenderWidgetHostViewWin::Blur() {
   views::FocusManager* focus_manager =
       views::FocusManager::GetFocusManagerForNativeView(m_hWnd);
   // We don't have a FocusManager if we are hidden.
-  if (focus_manager)
+  if (focus_manager && render_widget_host_->CanBlur())
     focus_manager->ClearFocus();
 }
 
 bool RenderWidgetHostViewWin::HasFocus() {
   return ::GetFocus() == m_hWnd;
 }
 
 void RenderWidgetHostViewWin::Show() {
   DCHECK(parent_hwnd_);
   DCHECK(parent_hwnd_ != GetDesktopWindow());
@@ skipping 1180 matching lines @@
     RenderWidgetHostView::GetRenderWidgetHostViewFromNativeView(
         gfx::NativeView native_view) {
   if (::IsWindow(native_view)) {
     HANDLE raw_render_host_view = ::GetProp(native_view,
                                             kRenderWidgetHostViewKey);
     if (raw_render_host_view)
       return reinterpret_cast<RenderWidgetHostView*>(raw_render_host_view);
   }
   return NULL;
 }