Re-anchors the permission bubble when its parent window has moved.

chrome/browser/ui/cocoa/website_settings/permission_bubble_controller.mm

Index: chrome/browser/ui/cocoa/website_settings/permission_bubble_controller.mm
diff --git a/chrome/browser/ui/cocoa/website_settings/permission_bubble_controller.mm b/chrome/browser/ui/cocoa/website_settings/permission_bubble_controller.mm
index 969e15bb0565f4525cc11553306ba252f86581ac..404b44dda07061b4510c89492399d3859c944ddf 100644
--- a/chrome/browser/ui/cocoa/website_settings/permission_bubble_controller.mm
+++ b/chrome/browser/ui/cocoa/website_settings/permission_bubble_controller.mm
@@ -244,6 +244,11 @@ class MenuDelegate : public ui::SimpleMenuModel::Delegate {
     [self setShouldOpenAsKeyWindow:NO];
     [[self bubble] setArrowLocation:info_bubble::kTopLeft];
     bridge_ = bridge;
+    NSNotificationCenter* center = [NSNotificationCenter defaultCenter];
+    [center addObserver:self
+               selector:@selector(parentWindowDidMove:)
+                   name:NSWindowDidMoveNotification
+                 object:parentWindow];
   }
   return self;
 }
@@ -262,6 +267,11 @@ class MenuDelegate : public ui::SimpleMenuModel::Delegate {
   [self setAnchorPoint:bridge_->GetAnchorPoint()];
 }
 
+- (void)parentWindowDidMove:(NSNotification*)notification {
+  DCHECK(bridge_);
+  [self setAnchorPoint:bridge_->GetAnchorPoint()];
+}
+
 - (void)showAtAnchor:(NSPoint)anchorPoint
          withDelegate:(PermissionBubbleView::Delegate*)delegate
           forRequests:(const std::vector<PermissionBubbleRequest*>&)requests