Widen the suppression for bug 52834 once again, suppress a memory leak in Ext...

tools/valgrind/memcheck/suppressions.txt

Index: tools/valgrind/memcheck/suppressions.txt
===================================================================
--- tools/valgrind/memcheck/suppressions.txt	(revision 56845)
+++ tools/valgrind/memcheck/suppressions.txt	(working copy)
@@ -4185,10 +4185,6 @@
    Memcheck:Leak
    fun:_Znw*
    ...
-   fun:_ZN5IDMapIN3IPC7Channel8ListenerEL23IDMapOwnershipSemantics0EEC1Ev
-   fun:_ZN17RenderProcessHostC2EP7Profile
-   ...
-   fun:_ZN21MockRenderProcessHostC1EP7Profile
    fun:_ZNK28MockRenderProcessHostFactory23CreateRenderProcessHostEP7Profile
    fun:_ZN12SiteInstance10GetProcessEv
    fun:_ZN14RenderViewHostC2EP12SiteInstanceP22RenderViewHostDelegateix
@@ -4215,3 +4211,14 @@
    fun:event_process_active
    fun:event_base_loop
 }
+{
+   bug_52837
+   Memcheck:Leak
+   fun:_Znw*
+   ...
+   fun:_ZNSt3mapISs8FilePathSt4lessISsESaISt4pairIKSsS0_EEE6insertESt17_Rb_tree_iteratorIS5_ERKS5_
+   fun:_ZNSt3mapISs8FilePathSt4lessISsESaISt4pairIKSsS0_EEEixERS4_
+   fun:_ZN17ExtensionsService15UnloadExtensionERKSs
+   fun:_ZN17ExtensionsService18UninstallExtensionERKSsb
+   fun:_ZN18AutomationProvider18UninstallExtensionEiPb
+}