Browser Plugin: WebContents should notify when it's restored

chrome/browser/ui/cocoa/download/download_started_animation_mac.mm

Index: chrome/browser/ui/cocoa/download/download_started_animation_mac.mm
diff --git a/chrome/browser/ui/cocoa/download/download_started_animation_mac.mm b/chrome/browser/ui/cocoa/download/download_started_animation_mac.mm
index 61391112af36c56894d527b07eba15fee6e945f9..c4bfaebbbc4bf51b3072b5f87f31bff4302f98b3 100644
--- a/chrome/browser/ui/cocoa/download/download_started_animation_mac.mm
+++ b/chrome/browser/ui/cocoa/download/download_started_animation_mac.mm
@@ -56,7 +56,7 @@ class DownloadAnimationWebObserver : public content::NotificationObserver {
       : owner_(owner),
         web_contents_(web_contents) {
     registrar_.Add(this,
-                   content::NOTIFICATION_WEB_CONTENTS_HIDDEN,
+                   content::NOTIFICATION_WEB_CONTENTS_VISIBILITY_CHANGED,
                    content::Source<WebContents>(web_contents_));
     registrar_.Add(this,
                    content::NOTIFICATION_WEB_CONTENTS_DESTROYED,
@@ -68,6 +68,11 @@ class DownloadAnimationWebObserver : public content::NotificationObserver {
   void Observe(int type,
                const content::NotificationSource& source,
                const content::NotificationDetails& details) {
+    if (type == content::NOTIFICATION_WEB_CONTENTS_VISIBILITY_CHANGED) {
+      bool visible = *content::Details<bool>(details).ptr();
+      if (visible)
+        return;
+    }
     // This ends up deleting us.
     [owner_ closeAnimation];
   }