Migrate accessibility from RenderView to RenderFrame.

content/browser/accessibility/browser_accessibility_cocoa.mm

Index: content/browser/accessibility/browser_accessibility_cocoa.mm
diff --git a/content/browser/accessibility/browser_accessibility_cocoa.mm b/content/browser/accessibility/browser_accessibility_cocoa.mm
index 232e4827750c76a2d30f5f2412b1878fbc30e6a1..05bdcb0a40af59c504e956417243fa484f21f64f 100644
--- a/content/browser/accessibility/browser_accessibility_cocoa.mm
+++ b/content/browser/accessibility/browser_accessibility_cocoa.mm
@@ -1491,7 +1491,13 @@ NSDictionary* attributeToMethodNameMap = nil;
     [self delegate]->AccessibilityDoDefaultAction(
         browserAccessibility_->GetId());
   } else if ([action isEqualToString:NSAccessibilityShowMenuAction]) {
-    [self delegate]->AccessibilityShowMenu(browserAccessibility_->GetId());
+    NSPoint objOrigin = [self origin];
+    NSSize size = [[self size] sizeValue];
+    gfx::Point origin = [self delegate]->AccessibilityOriginInScreen(
+        gfx::Rect(objOrigin.x, objOrigin.y, size.width, size.height));
+    origin.set_x(origin.x() + size.width / 2);
+    origin.set_y(origin.y() + size.width / 2);
+    [self delegate]->AccessibilityShowMenu(origin);
   }
 }
 
@@ -1516,10 +1522,11 @@ NSDictionary* attributeToMethodNameMap = nil;
     return;
 
   if ([attribute isEqualToString:NSAccessibilityFocusedAttribute]) {
+    BrowserAccessibilityManager* manager = browserAccessibility_->manager();
     NSNumber* focusedNumber = value;
     BOOL focused = [focusedNumber intValue];
     if (focused)
-      [self delegate]->AccessibilitySetFocus(browserAccessibility_->GetId());
+      manager->SetFocus(browserAccessibility_, true);
   }
   if ([attribute isEqualToString:NSAccessibilitySelectedTextRangeAttribute]) {
     NSRange range = [(NSValue*)value rangeValue];