Move some AX attrs from AXNodeData to AXTreeData.

content/browser/accessibility/browser_accessibility_cocoa.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.
 
 #include <execinfo.h>
 
 #import "content/browser/accessibility/browser_accessibility_cocoa.h"
 
 #include <map>
 
@@ skipping 750 matching lines @@
   if ([ret count] == 0)
     return nil;
   return ret;
 }
 
 - (NSNumber*)loaded {
   return [NSNumber numberWithBool:YES];
 }
 
 - (NSNumber*)loadingProgress {
-  float floatValue = browserAccessibility_->GetFloatAttribute(
-      ui::AX_ATTR_DOC_LOADING_PROGRESS);
+  BrowserAccessibilityManager* manager = browserAccessibility_->manager();
+  float floatValue = manager->GetTreeData().loading_progress;
   return [NSNumber numberWithFloat:floatValue];
 }
 
 - (NSNumber*)maxValue {
   float floatValue = browserAccessibility_->GetFloatAttribute(
       ui::AX_ATTR_MAX_VALUE_FOR_RANGE);
   return [NSNumber numberWithFloat:floatValue];
 }
 
 - (NSNumber*)minValue {
@@ skipping 415 matching lines @@
     BrowserAccessibility* titleElement =
         browserAccessibility_->manager()->GetFromID(labelledby_ids[0]);
     if (titleElement)
       return titleElement->ToBrowserAccessibilityCocoa();
   }
 
   return nil;
 }
 
 - (NSURL*)url {
-  StringAttribute urlAttribute =
-      [[self role] isEqualToString:@"AXWebArea"] ?
-          ui::AX_ATTR_DOC_URL :
-          ui::AX_ATTR_URL;
+  std::string url;
+  if ([[self role] isEqualToString:@"AXWebArea"])
+    url = browserAccessibility_->manager()->GetTreeData().url;
+  else
+    url = browserAccessibility_->GetStringAttribute(ui::AX_ATTR_URL);
 
-  std::string urlStr = browserAccessibility_->GetStringAttribute(urlAttribute);
-  if (urlStr.empty())
+  if (url.empty())
     return nil;
 
-  return [NSURL URLWithString:(base::SysUTF8ToNSString(urlStr))];
+  return [NSURL URLWithString:(base::SysUTF8ToNSString(url))];
 }
 
 - (id)value {
   // WebCore uses an attachmentView to get the below behavior.
   // We do not have any native views backing this object, so need
   // to approximate Cocoa ax behavior best as we can.
   NSString* role = [self role];
   if ([role isEqualToString:@"AXHeading"]) {
     int level = 0;
     if (browserAccessibility_->GetIntAttribute(
@@ skipping 757 matching lines @@
   if (!browserAccessibility_)
     return [super hash];
   return browserAccessibility_->GetId();
 }
 
 - (BOOL)accessibilityShouldUseUniqueId {
   return YES;
 }
 
 @end