Suppression for AccessibilityController::shouldDumpAccessibiltyNotifications

BUG=73415
TEST=waterfall.sh match

Review URL: http://codereview.chromium.org/6538056

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@75391 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/memcheck/suppressions.txt

@@ -3804,3 +3804,11 @@
    fun:_ZN16ExtensionService18UninstallExtensionERKSsb
    fun:*BackgroundApplicationListModelTest*
 }
+{
+   bug_73415
+   Memcheck:Addr1
+   fun:_ZN23AccessibilityController36shouldDumpAccessibilityNotificationsEv
+   fun:_ZN11WebViewHost29postAccessibilityNotificationERKN6WebKit22WebAccessibilityObjectENS0_28WebAccessibilityNotificationE
+   fun:_ZN6WebKit16ChromeClientImpl29postAccessibilityNotificationEPN7WebCore19AccessibilityObjectENS1_13AXObjectCache14AXNotificationE
+   fun:_ZN7WebCore13AXObjectCache24postPlatformNotificationEPNS_19AccessibilityObjectENS0_14AXNotificationE
+}