Add initial GTK web accessibility framework (new with valgrind fix).

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>
 
 #include "base/basictypes.h"
 #include "base/string16.h"
 #include "base/sys_string_conversions.h"
 #include "base/utf_string_conversions.h"
+#include "content/browser/accessibility/browser_accessibility_mac.h"
 #include "content/browser/accessibility/browser_accessibility_manager.h"
 #include "content/public/common/content_client.h"
 #include "grit/webkit_strings.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebRect.h"
 
 // See http://openradar.appspot.com/9896491. This SPI has been tested on 10.5,
 // 10.6, and 10.7. It allows accessibility clients to observe events posted on
 // this object.
 extern "C" void NSAccessibilityUnregisterUniqueIdForUIElement(id element);
 
@@ skipping 311 matching lines @@
 // Returns an array of BrowserAccessibilityCocoa objects, representing the
 // accessibility children of this object.
 - (NSArray*)children {
   if (!children_.get()) {
     children_.reset([[NSMutableArray alloc]
         initWithCapacity:browserAccessibility_->child_count()] );
     for (uint32 index = 0;
          index < browserAccessibility_->child_count();
          ++index) {
       BrowserAccessibilityCocoa* child =
-          browserAccessibility_->GetChild(index)->toBrowserAccessibilityCocoa();
+          browserAccessibility_->GetChild(index)->
+              ToBrowserAccessibilityMac()->native_view();
       if ([child isIgnored])
         [children_ addObjectsFromArray:[child children]];
       else
         [children_ addObject:child];
     }
 
     // Also, add indirect children (if any).
     for (uint32 i = 0;
          i < browserAccessibility_->indirect_child_ids().size();
          ++i) {
       int32 child_id = browserAccessibility_->indirect_child_ids()[i];
       BrowserAccessibility* child =
           browserAccessibility_->manager()->GetFromRendererID(child_id);
 
       // This only became necessary as a result of crbug.com/93095. It should be
       // a DCHECK in the future.
       if (child) {
         BrowserAccessibilityCocoa* child_cocoa =
-            child->toBrowserAccessibilityCocoa();
+            child->ToBrowserAccessibilityMac()->native_view();
         [children_ addObject:child_cocoa];
       }
     }
   }
   return children_;
 }
 
 - (void)childrenChanged {
   if (![self isIgnored]) {
     children_.reset();
-  } else {
-    [browserAccessibility_->parent()->toBrowserAccessibilityCocoa()
-       childrenChanged];
+  } else if (browserAccessibility_->parent()) {
+    [browserAccessibility_->parent()->ToBrowserAccessibilityMac()->native_view()
+         childrenChanged];
   }
 }
 
 - (NSArray*)columns {
   NSMutableArray* ret = [[[NSMutableArray alloc] init] autorelease];
   for (BrowserAccessibilityCocoa* child in [self children]) {
     if ([[child role] isEqualToString:NSAccessibilityColumnRole])
       [ret addObject:child];
   }
   return ret;
@@ skipping 92 matching lines @@
 // bottom-left origin.
 - (NSPoint)origin {
   gfx::Rect bounds = browserAccessibility_->GetLocalBoundsRect();
   return NSMakePoint(bounds.x(), bounds.y());
 }
 
 - (id)parent {
   // A nil parent means we're the root.
   if (browserAccessibility_->parent()) {
     return NSAccessibilityUnignoredAncestor(
-        browserAccessibility_->parent()->toBrowserAccessibilityCocoa());
+        browserAccessibility_->parent()->ToBrowserAccessibilityMac()->
+            native_view());
   } else {
     // Hook back up to RenderWidgetHostViewCocoa.
     return browserAccessibility_->manager()->GetParentView();
   }
 }
 
 - (NSValue*)position {
   return [NSValue valueWithPoint:[delegate_ accessibilityPointInScreen:self]];
 }
 
@@ skipping 123 matching lines @@
   return base::SysUTF16ToNSString(browserAccessibility_->name());
 }
 
 - (id)titleUIElement {
   int titleElementId;
   if (browserAccessibility_->GetIntAttribute(
           WebAccessibility::ATTR_TITLE_UI_ELEMENT, &titleElementId)) {
     BrowserAccessibility* titleElement =
         browserAccessibility_->manager()->GetFromRendererID(titleElementId);
     if (titleElement)
-      return titleElement->toBrowserAccessibilityCocoa();
+      return titleElement->ToBrowserAccessibilityMac()->native_view();
   }
   return nil;
 }
 
 - (NSString*)url {
   StringAttribute urlAttribute =
       [[self role] isEqualToString:@"AXWebArea"] ?
           WebAccessibility::ATTR_DOC_URL :
           WebAccessibility::ATTR_URL;
   return NSStringForStringAttribute(
@@ skipping 397 matching lines @@
     return [super hash];
   return browserAccessibility_->renderer_id();
 }
 
 - (BOOL)accessibilityShouldUseUniqueId {
   return YES;
 }
 
 @end