Added a class acting as a fake caret for accessibility.

content/browser/accessibility/browser_accessibility_android.cc

 // Copyright 2013 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/accessibility/browser_accessibility_android.h"
 
 #include "base/i18n/break_iterator.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
@@ skipping 462 matching lines @@
       break;
     case ui::AX_ROLE_BUTTON_DROP_DOWN:
       message_id = IDS_AX_ROLE_BUTTON_DROP_DOWN;
       break;
     case ui::AX_ROLE_CANVAS:
       // No role description.
       break;
     case ui::AX_ROLE_CAPTION:
       // No role description.
        break;
+    case ui::AX_ROLE_CARET:
+      // No role description.
+      break;
     case ui::AX_ROLE_CELL:
       message_id = IDS_AX_ROLE_CELL;
       break;
     case ui::AX_ROLE_CHECK_BOX:
       message_id = IDS_AX_ROLE_CHECK_BOX;
       break;
     case ui::AX_ROLE_CLIENT:
       // No role description.
       break;
     case ui::AX_ROLE_COLOR_WELL:
@@ skipping 923 matching lines @@
 int BrowserAccessibilityAndroid::CountChildrenWithRole(ui::AXRole role) const {
   int count = 0;
   for (uint32_t i = 0; i < PlatformChildCount(); i++) {
     if (PlatformGetChild(i)->GetRole() == role)
       count++;
   }
   return count;
 }
 
 }  // namespace content