Expose images to accessibility

chrome/browser/resources/chromeos/chromevox/cvox2/background/command_handler.js

 // Copyright 2016 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.
 
 /**
  * @fileoverview ChromeVox commands.
  */
 
 goog.provide('CommandHandler');
 
@@ skipping 258 matching lines @@
     case 'nextFormField':
       dir = Dir.FORWARD;
       pred = AutomationPredicate.formField;
       predErrorMsg = 'no_next_form_field';
       break;
     case 'previousFormField':
       dir = Dir.BACKWARD;
       pred = AutomationPredicate.formField;
       predErrorMsg = 'no_previous_form_field';
       break;
+    case 'previousGraphic':
+      dir = Dir.BACKWARD;
+      pred = AutomationPredicate.image;
+      predErrorMsg = 'no_previous_graphic';
+      break;
+    case 'nextGraphic':
+      dir = Dir.FORWARD;
+      pred = AutomationPredicate.image;
+      predErrorMsg = 'no_next_graphic';
+      break;
     case 'nextHeading':
       dir = Dir.FORWARD;
       pred = AutomationPredicate.heading;
       predErrorMsg = 'no_next_heading';
       break;
     case 'nextHeading1':
       dir = Dir.FORWARD;
       pred = AutomationPredicate.makeHeadingPredicate(1);
       predErrorMsg = 'no_next_heading_1';
       break;
@@ skipping 448 matching lines @@
       break;
   }
   if (announcement) {
     cvox.ChromeVox.tts.speak(
         announcement, cvox.QueueMode.FLUSH,
         cvox.AbstractTts.PERSONALITY_ANNOTATION);
   }
 };
 
 }); //  goog.scope