MacViews a11y: Sync VoiceOver cursor with keyboard focus.

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"
 
 #include <objc/objc-exception.h>
 
 #import "base/auto_reset.h"
 #include "base/command_line.h"
 #include "base/debug/crash_logging.h"
 #include "base/debug/stack_trace.h"
 #import "base/logging.h"
 #include "base/mac/call_with_eh_frame.h"
 #import "base/mac/scoped_nsobject.h"
 #import "base/mac/scoped_objc_class_swizzler.h"
 #include "base/macros.h"
 #import "base/metrics/histogram.h"
 #include "base/strings/stringprintf.h"
 #import "base/strings/sys_string_conversions.h"
 #import "chrome/browser/app_controller_mac.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_iterator.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/crash_keys.h"
 #import "components/crash/core/common/objc_zombie.h"
 #include "content/public/browser/browser_accessibility_state.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
+#import "ui/accessibility/platform/ax_platform_node_mac.h"

[tapted, 2016/09/26 05:19:17]

nit: we can revert this file back to how it was so it drops off the diff

[Patti Lor, 2016/09/28 00:29:14]

Done.

+#include "ui/views/accessibility/native_view_accessibility.h"
+#include "ui/views/widget/widget.h"
 
 namespace chrome_browser_application_mac {
 
 // Maximum number of known named exceptions we'll support.  There is
 // no central registration, but I only find about 75 possibilities in
 // the system frameworks, and many of them are probably not
 // interesting to track in aggregate (those relating to distributed
 // objects, for instance).
 const size_t kKnownNSExceptionCount = 25;
 
@@ skipping 301 matching lines @@
 
       default: {
         base::mac::ScopedSendingEvent sendingEventScoper;
         [super sendEvent:event];
       }
     }
   });
 }
 
 - (void)accessibilitySetValue:(id)value forAttribute:(NSString*)attribute {
-  // This is an undocument attribute that's set when VoiceOver is turned on/off.
+  // This is an undocumented attribute, set whenever VoiceOver is turned on/off.
   if ([attribute isEqualToString:@"AXEnhancedUserInterface"]) {
     content::BrowserAccessibilityState* accessibility_state =
         content::BrowserAccessibilityState::GetInstance();
     if ([value intValue] == 1)
       accessibility_state->OnScreenReaderDetected();
     else
       accessibility_state->DisableAccessibility();
   }
   return [super accessibilitySetValue:value forAttribute:attribute];
 }
 
 - (void)_cycleWindowsReversed:(BOOL)arg1 {
   base::AutoReset<BOOL> pin(&cyclingWindows_, YES);
   [super _cycleWindowsReversed:arg1];
 }
 
 - (BOOL)isCyclingWindows {
   return cyclingWindows_;
 }
 
 @end