Enables permission bubbles to remain visible during fulscreen on Mac.

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 94a8b70f10921d93f13ae2091d3fab1993fb1de4..629fd5ba2a428d88866b6734bb0e407b69e9b52d 100644
--- a/chrome/browser/ui/cocoa/website_settings/permission_bubble_controller.mm
+++ b/chrome/browser/ui/cocoa/website_settings/permission_bubble_controller.mm
@@ -236,6 +236,7 @@ class MenuDelegate : public ui::SimpleMenuModel::Delegate {
                       backing:NSBackingStoreBuffered
                         defer:NO]);
   [window setAllowedAnimations:info_bubble::kAnimateNone];
+  [window setReleasedWhenClosed:NO];
   if ((self = [super initWithWindow:window
                        parentWindow:parentWindow
                          anchoredAt:NSZeroPoint])) {
@@ -252,6 +253,15 @@ class MenuDelegate : public ui::SimpleMenuModel::Delegate {
   [super windowWillClose:notification];
 }
 
+- (void)parentWindowWillBecomeFullScreen:(NSNotification*)notification {
+  // Override the base class implementation, which would have closed the bubble.
+}
+
+- (void)parentWindowDidResize:(NSNotification*)notification {
+  DCHECK(bridge_);
+  [self setAnchorPoint:bridge_->AnchorPoint()];
+}
+
 - (void)showAtAnchor:(NSPoint)anchorPoint
          withDelegate:(PermissionBubbleView::Delegate*)delegate
           forRequests:(const std::vector<PermissionBubbleRequest*>&)requests