Suppress glib/gthread leaks in component build.

tools/valgrind/memcheck/suppressions.txt

Index: tools/valgrind/memcheck/suppressions.txt
diff --git a/tools/valgrind/memcheck/suppressions.txt b/tools/valgrind/memcheck/suppressions.txt
index 8f69014108be10983ab0d7a0b53d4b2bc640444b..6c2e1f4b1c8ea621bca9d34d83beeebf0456e7bc 100644
--- a/tools/valgrind/memcheck/suppressions.txt
+++ b/tools/valgrind/memcheck/suppressions.txt
@@ -7028,3 +7028,17 @@
    fun:_ZN2cc17LayerTreeHostImpl18InitializeRendererE10scoped_ptrINS_13OutputSurfaceEN4base14DefaultDeleterIS2_EEE
    fun:_ZN2cc11ThreadProxy30InitializeRendererOnImplThreadEPNS_15CompletionEventEPbPNS_20RendererCapabilitiesE
 }
+{
+   glib/gthread malloc leak in component build

[Reid Kleckner, 2013/04/18 18:06:12]

These kinds of leaks from system components that we don't control should go at
the end of section 1.  Search for "# 2." and put it before that.

[Ryan Hamilton, 2013/04/18 18:16:53]

Done.

+   Memcheck:Leak
+   fun:malloc
+	 ...

[Reid Kleckner, 2013/04/18 18:06:12]

This file uses 3 space indents.  Yes, I know it's weird.  I don't know who
started it.

[Ryan Hamilton, 2013/04/18 18:16:53]

Woah!  How did those tabs get in there.  Sorry!  (Since this a .txt file, I'll
bet my emacs indenting config is confused).  Done.

+   fun:g_thread_proxy
+}
+{
+	 glib/gthread calloc leak in component build

[Reid Kleckner, 2013/04/18 18:06:12]

ditto

[Ryan Hamilton, 2013/04/18 18:16:53]

Done.

+   Memcheck:Leak
+   fun:calloc
+	 ...
+   fun:g_thread_proxy

[Reid Kleckner, 2013/04/18 18:06:12]

Are you reasonably sure this happens once per thread creation?

[Ryan Hamilton, 2013/04/18 18:16:53]

I have no idea whatsoever :(  All I know is that these errors show up ever time
I run net_unittests under valgrind when build via the component build, but do
not happen in the regular build.  Since they appear to originate in
glib/gthread, I think they're not "us", but I really don't know anything beyond
that...

+}