More NativeWidget -> Widget notifications: visibility, minimize.

ui/views/cocoa/views_nswindow_delegate.mm

Index: ui/views/cocoa/views_nswindow_delegate.mm
diff --git a/ui/views/cocoa/views_nswindow_delegate.mm b/ui/views/cocoa/views_nswindow_delegate.mm
index 038a844a2713d280b5673eb20d5e610a6c211d81..53fd9207cb82c128668c20eb00e8b241cec579a0 100644
--- a/ui/views/cocoa/views_nswindow_delegate.mm
+++ b/ui/views/cocoa/views_nswindow_delegate.mm
@@ -28,8 +28,9 @@
     [parent_->ns_view() setWillShow:YES];
 }
 
-- (void)onWindowOrderChanged {
+- (void)onWindowOrderChanged:(NSNotification*)notification {
   [parent_->ns_view() setWillShow:NO];
+  parent_->OnVisibilityChanged();
 }
 
 // NSWindowDelegate implementation.
@@ -64,6 +65,14 @@
   parent_->OnWindowWillClose();
 }
 
+- (void)windowDidMiniaturize:(NSNotification*)notification {
+  parent_->OnVisibilityChanged();
+}
+
+- (void)windowDidDeminiaturize:(NSNotification*)notification {
+  parent_->OnVisibilityChanged();
+}
+
 - (void)windowWillEnterFullScreen:(NSNotification*)notification {
   parent_->OnFullscreenTransitionStart(true);
 }