Add an accessibility mode for editable text fields only.

content/browser/renderer_host/render_widget_host_view_win.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/browser/renderer_host/render_widget_host_view_win.h"
 
 #include <algorithm>
 #include <peninputpanel_i.c>
 
 #include "base/bind.h"
@@ skipping 2262 matching lines @@
   render_widget_host_->AccessibilitySetTextSelection(
       acc_obj_id, start_offset, end_offset);
 }
 
 LRESULT RenderWidgetHostViewWin::OnGetObject(UINT message, WPARAM wparam,
                                              LPARAM lparam, BOOL& handled) {
   if (kIdCustom == lparam) {
     // An MSAA client requestes our custom id. Assume that we have detected an
     // active windows screen reader.
     BrowserAccessibilityState::GetInstance()->OnScreenReaderDetected();
-    render_widget_host_->EnableRendererAccessibility();
+    if (BrowserAccessibilityState::GetInstance()->IsAccessibleBrowser())
+      render_widget_host_->SetAccessibilityMode(AccessibilityModeComplete);
 
     // Return with failure.
     return static_cast<LRESULT>(0L);
   }
 
   if (lparam != OBJID_CLIENT) {
     handled = false;
     return static_cast<LRESULT>(0L);
   }
 
@@ skipping 380 matching lines @@
 void RenderWidgetHostViewWin::ResetPointerDownContext() {
   // If the default focus on the page is on an edit field and we did not
   // receive a focus change in the context of a pointer down message, it means
   // that the pointer down message occurred on the edit field and we should
   // display the on screen keyboard
   if (!received_focus_change_after_pointer_down_ && virtual_keyboard_)
     DisplayOnScreenKeyboardIfNeeded();
   received_focus_change_after_pointer_down_ = false;
   pointer_down_context_ = false;
 }