Comment on attachment 8419908
Implement WakeLockListener on Linux to disable screensaver while video is 
playing

>+NS_IMPL_ISUPPORTS1(WakeLockListener, nsIDOMMozWakeLockListener)

Will need to remove the '1' here now.

>+  dbus_pending_call_set_notify(reply, &ReceiveInhibitReply, this,
NULL);

|this| needs to stay alive until the reply is received, and I assume that may
be after the power manager service is deleted.

There are probably several ways to handle this: perhaps add a reference to the
WakeLockListener, and remove in free_user_data; or make the WakeLockListener a
singleton and check that it still exists in ReceiveInhibitReply().

>+    DBusError err;
>+    dbus_error_init(&err);

This should be freed if set, but easier is to just pass nullptr.

>+WakeLockTopic::InhibitScreensaver()
>+{
>+  NS_ASSERTION(!mShouldInhibit, "Screensaver is already inhibited");

>+WakeLockTopic::UninhibitScreensaver()
>+{
>+  if (!mShouldInhibit) {
>+    // Screensaver isn't inhibited. Nothing to do here.
>+    return NS_OK;

Could this instead assert that this path is not reached, as in
InhibitScreensaver()?

>+  nsClassHashtable<nsStringHashKey, WakeLockTopic> mTopics;

Topics are never removed from this hashtable (until shutdown).  Is there a
small finite sized set of topics?  Please add a comment stating this
assumption.

>+  virtual ~WakeLockListener() MOZ_FINAL;

By moving the MOZ_FINAL to the class definition, this destructor need not be
virtual.

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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/434476

Title:
  screensaver starts while playing HTML5 videos

Status in The Mozilla Firefox Browser:
  Confirmed
Status in “firefox” package in Ubuntu:
  Confirmed
Status in “firefox-3.5” package in Ubuntu:
  Triaged

Bug description:
  Binary package hint: firefox-3.5

  karmic alpha6 + updates

  - click on a .ogv video link
  - after watching some time, screensaver starts.

  ProblemType: Bug
  Architecture: amd64
  Date: Tue Sep 22 08:45:53 2009
  DistroRelease: Ubuntu 9.10
  NonfreeKernelModules: nvidia
  Package: firefox 3.5.3+build1+nobinonly-0ubuntu2
  PackageArchitecture: all
  ProcEnviron:
   LANG=de_AT.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.31-10.34-generic
  SourcePackage: firefox-3.5
  Uname: Linux 2.6.31-10-generic x86_64

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