Initial implementation of IAccessible2 scrollTo and setTextSelection and

content/browser/renderer_host/render_widget_host_view_win.cc

 // Copyright (c) 2011 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 "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 2100 matching lines @@
   render_widget_host_->AccessibilitySetFocus(acc_obj_id);
 }
 
 void RenderWidgetHostViewWin::AccessibilityDoDefaultAction(int acc_obj_id) {
   if (!render_widget_host_)
     return;
 
   render_widget_host_->AccessibilityDoDefaultAction(acc_obj_id);
 }
 
+void RenderWidgetHostViewWin::AccessibilityChangeScrollPosition(
+    int acc_obj_id, int scroll_x, int scroll_y) {
+  if (!render_widget_host_)
+    return;
+
+  render_widget_host_->AccessibilityChangeScrollPosition(
+      acc_obj_id, scroll_x, scroll_y);
+}
+
+void RenderWidgetHostViewWin::AccessibilitySetTextSelection(
+    int acc_obj_id, int start_offset, int end_offset) {
+  if (!render_widget_host_)
+    return;
+
+  render_widget_host_->AccessibilitySetTextSelection(
+      acc_obj_id, start_offset, end_offset);
+}
+
 IAccessible* RenderWidgetHostViewWin::GetIAccessible() {
   if (render_widget_host_ && !render_widget_host_->renderer_accessible()) {
     // Attempt to detect screen readers by sending an event with our custom id.
     NotifyWinEvent(EVENT_SYSTEM_ALERT, m_hWnd, kIdCustom, CHILDID_SELF);
   }
 
   if (!browser_accessibility_manager_.get()) {
     // Return busy document tree while renderer accessibility tree loads.
     WebAccessibility::State busy_state =
         static_cast<WebAccessibility::State>(1 << WebAccessibility::STATE_BUSY);
@@ skipping 349 matching lines @@
 
   size_t offset = selection_range_.GetMin() - selection_text_offset_;
   memcpy(reinterpret_cast<char*>(reconv) + sizeof(RECONVERTSTRING),
          selection_text_.c_str() + offset, len * sizeof(WCHAR));
 
   // According to Microsft API document, IMR_RECONVERTSTRING and
   // IMR_DOCUMENTFEED should return reconv, but some applications return
   // need_size.
   return reinterpret_cast<LRESULT>(reconv);
 }