Add an accessibility mode for editable text fields only.

chrome/browser/chrome_browser_application_mac.mm

 // 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.
 
 #import "chrome/browser/chrome_browser_application_mac.h"
 
 #import "base/auto_reset.h"
 #import "base/logging.h"
 #include "base/mac/crash_logging.h"
 #import "base/mac/scoped_nsexception_enabler.h"
@@ skipping 487 matching lines @@
 - (void)accessibilitySetValue:(id)value forAttribute:(NSString*)attribute {
   if ([attribute isEqualToString:@"AXEnhancedUserInterface"] &&
       [value intValue] == 1) {
     BrowserAccessibilityState::GetInstance()->OnScreenReaderDetected();
     for (TabContentsIterator it;
          !it.done();
          ++it) {
       if (TabContentsWrapper* contents = *it) {
         if (content::RenderViewHost* rvh =
                 contents->web_contents()->GetRenderViewHost()) {
-          rvh->EnableRendererAccessibility();
+          rvh->EnableFullAccessibilityMode();
         }
       }
     }
   }
   return [super accessibilitySetValue:value forAttribute:attribute];
 }
 
 - (void)_cycleWindowsReversed:(BOOL)arg1 {
   AutoReset<BOOL> pin(&cyclingWindows_, YES);
   [super _cycleWindowsReversed:arg1];
@@ skipping 52 matching lines @@
   std::vector<NSWindow*>::iterator window_iterator =
       std::find(previousKeyWindows_.begin(),
                 previousKeyWindows_.end(),
                 window);
   if (window_iterator != previousKeyWindows_.end()) {
     previousKeyWindows_.erase(window_iterator);
   }
 }
 
 @end