Valgrind: Suppress leaks in history::TopSitesDatabase::Create and views::NativeWidgetGtk::OnPaint.

tools/valgrind/memcheck/suppressions.txt

 # There are three 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 # running overnight and removing outdated bugs/suppressions.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 5312 matching lines @@
    Memcheck:Leak
    fun:_Znw*
    fun:_ZNSs4_Rep9_S_createEjjRKSaIcE
    fun:_ZNSs9_M_mutateEjjj
    fun:_ZNSs12_M_leak_hardEv
    fun:_ZNSsixEj
    fun:_ZN3net13TrimEndingDotERKSs
    fun:_ZN3net20GetHostOrSpecFromURLERK4GURL
    fun:_ZN20AsyncResourceHandler17OnResponseStartedEiP16ResourceResponse
 }
+{
+   bug_92571
+   Memcheck:Leak
+   fun:_Znw*
+   fun:_ZN7history16TopSitesDatabase8CreateDBERK8FilePath
+   fun:_ZN7history16TopSitesDatabase4InitERK8FilePath
+   fun:_ZN7history15TopSitesBackend16InitDBOnDBThreadERK8FilePath
+   fun:_Z16DispatchToMethodIN7history15TopSitesBackendEMS1_FvRK8FilePathES2_EvPT_T0_RK6Tuple1IT1_E
+   fun:_ZN14RunnableMethodIN7history15TopSitesBackendEMS1_FvRK8FilePathE6Tuple1IS2_EE3RunEv
+   fun:_ZN4base6subtle18TaskClosureAdapter3RunEv
+}
+{
+   bug_92573
+   Memcheck:Leak
+   fun:malloc
+   fun:g_malloc
+   fun:g_slice_alloc
+   fun:gdk_region_new
+   fun:gdk_region_copy
+   ...
+   fun:_ZN5views15NativeWidgetGtk7OnPaintEP10_GtkWidgetP15_GdkEventExpose
+   fun:_ZN5views15NativeWidgetGtk12OnPaintThunkEP10_GtkWidgetP15_GdkEventExposePv
+   fun:_gtk_marshal_BOOLEAN__BOXED
+   fun:g_closure_invoke
+   fun:signal_emit_unlocked_R
+   fun:g_signal_emit_valist
+   fun:g_signal_emit
+   fun:gtk_widget_event_internal
+   fun:gtk_main_do_event
+   fun:_ZN5views18AcceleratorHandler8DispatchEP9_GdkEvent
+   fun:_ZN4base14MessagePumpGtk14DispatchEventsEP9_GdkEvent
+}
 
 #-----------------------------------------------------------------------
 # These only occur on our Google workstations
 {
    bug_todo_freeres
    Memcheck:Free
    fun:free
    fun:__libc_freeres
    fun:_vgnU_freeres
    fun:_Exit
@@ skipping 10 matching lines @@
 }
 {
    bug_todo_getdelim2
    Memcheck:Leak
    fun:malloc
    fun:getdelim
    obj:/lib/libselinux.so.1
    obj:/lib/libselinux.so.1
    obj:/lib/libselinux.so.1
 }