Valgrind: Widen a suppression and suppress a new error.

tools/valgrind/memcheck/suppressions.txt

 # There are four kinds of suppressions in this file.
 # 1. third party stuff we have no control over
 #
 # 2. intentional unit test errors, or stuff that is somehow a false positive
 # in our own code, or stuff that is so trivial it's not worth fixing
 #
 # 3. Suppressions for real chromium bugs that are not yet fixed.
 # These should all be in chromium's bug tracking system (but a few aren't yet).
 # Periodically we should sweep this file and the bug tracker clean by
 # running overnight and removing outdated bugs/suppressions.
@@ skipping 2458 matching lines @@
    fun:_ZNSt6vectorI13scoped_refptrIN3IPC12ChannelProxy13MessageFilterEESaIS4_EE13_M_insert_auxEN9__gnu_cxx17__normal_iteratorIPS4_S6_EERKS4_
    fun:_ZNSt6vectorI13scoped_refptrIN3IPC12ChannelProxy13MessageFilterEESaIS4_EE9push_backERKS4_
    fun:_ZN3IPC12ChannelProxy7Context11OnAddFilterEv
 }
 {
    bug_65940_d
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN7content11ChildThread4InitEv
    fun:_ZN7content11ChildThreadC2ERKSs
-   fun:_ZN7content16RenderThreadImplC2ERKSs
-   fun:_ZN7content16RenderThreadImplC1ERKSs
+   ...
    fun:_ZN7content21WebRTCAudioDeviceTest5SetUpEv
 }
 {
+   bug_65940_e
+   Memcheck:Leak
+   fun:_Znw*
+   fun:_ZN7content16RenderThreadImpl4InitEv
+   fun:_ZN7content16RenderThreadImplC1ERKSs
+   ...
+   fun:_ZN7content21WebRTCAudioDeviceTest5SetUpEv
+}
+{
    bug_66853_a
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN11ProfileImpl14GetHostZoomMapEv
    ...
    fun:_ZNK17ProfileImplIOData6Handle27GetMainRequestContextGetterEv
    fun:_ZN11ProfileImpl17GetRequestContextEv
    fun:_ZN19SafeBrowsingService5StartEv
    fun:_ZN19SafeBrowsingService10InitializeEv
    fun:_ZN22ResourceDispatcherHost10InitializeEv
@@ skipping 4366 matching lines @@
    fun:_ZN4base10TaskRunner16PostTaskAndReplyERKN15tracked_objects8LocationERKNS_8CallbackIFvvEEES9_
    fun:_ZN4base26PostTaskAndReplyWithResultI10scoped_ptrIN20ManagedModeURLFilter8ContentsENS_14DefaultDeleterIS3_EEES6_EEbPNS_10TaskRunnerERKN15tracked_objects8LocationERKNS_8CallbackIFT_vEEERKNSD_IFvT0_EEE
    fun:_ZN20ManagedModeURLFilter14LoadWhitelistsE12ScopedVectorI19ManagedModeSiteListE
 }
 {
    bug_222363
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN18WebDatabaseService12LoadDatabaseERKN4base8CallbackIFvN3sql10InitStatusEEEE
 }
+{
+   bug_222532
+   Memcheck:Unaddressable
+   ...
+   fun:_ZN7content12_GLOBAL__N_127CaptureTestSourceController10OnShutdownEv
+}