Widen and add some suppressions for Valgrind on x64

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 # running overnight and removing outdated bugs/suppressions.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 632 matching lines @@
 {
    bug_80378_fixed_upstream_for_next_gtk
    Memcheck:Leak
    fun:malloc
    fun:g_malloc
    fun:g_slice_alloc
    ...
    fun:gtk_window_group_list_windows
    fun:_ZN8gtk_util*AppModal*
 }
+{
+   getpwuid_and_getgrouplist
+   Memcheck:Leak
+   fun:malloc
+   fun:nss_parse_service_list
+   fun:__nss_database_lookup
+   obj:*
+   ...
+   fun:get*
+}
+{
+   dbus_x64_leaks
+   Memcheck:Leak
+   ...
+   obj:/usr/bin/dbus-launch
+}
+{
+   pulseaudio: pa_set_env_and_record
+   Memcheck:Leak
+   fun:malloc
+   fun:realloc
+   fun:pa_xrealloc
+   fun:pa_sprintf_malloc
+   fun:pa_set_env
+   fun:pa_set_env_and_record
+   fun:main
+}
 
 # The following stack suppresses Memcheck false positives on NaCl browser_tests
 # See https://bugs.kde.org/show_bug.cgi?id=270709#c4 for possible reason
 {
    valgrind_bitfields_false_positive
    Memcheck:Cond
    fun:_ZN7WebCore13WidthIterator*
    fun:_ZNK7WebCore4Font33getGlyphsAndAdvancesForSimpleTextERKNS_7TextRunEiiRNS_11GlyphBufferENS0_20ForTextEmphasisOrNotE
    fun:_ZNK7WebCore4Font14drawSimpleTextEPNS_15GraphicsContextERKNS_7TextRunERKNS_10FloatPointEii
    ...
@@ skipping 3814 matching lines @@
    fun:g_slice_alloc0
    fun:g_type_create_instance
    fun:g_object_constructor
    fun:g_object_newv
    fun:g_object_new
    fun:_gdk_window_impl_new
    fun:gdk_window_ensure_native
    fun:gdk_x11_drawable_get_xid
    fun:_gtk_socket_windowing_realize_window
    fun:gtk_socket_realize
-   fun:g_cclosure_marshal_VOID__VOID
-   fun:g_type_class_meta_marshal
+   ...
    fun:g_closure_invoke
    fun:signal_emit_unlocked_R
    fun:g_signal_emit_valist
    fun:g_signal_emit
    fun:gtk_widget_realize
    fun:gtk_widget_set_parent
 }
 {
    bug_96407
    Memcheck:Leak
    fun:malloc
    fun:g_malloc
    fun:g_slice_alloc
    fun:g_slice_alloc0
    fun:g_type_create_instance
    fun:g_object_constructor
    fun:g_object_newv
    fun:g_object_new
    fun:_gdk_window_impl_new
    fun:gdk_window_ensure_native
    fun:gdk_x11_drawable_get_xid
    fun:_ZN19TestWebViewDelegate20CreatePluginDelegateERK8FilePathRKSs
 }
 {
    bug_96568a
    Memcheck:Leak
    fun:realloc
+   ...
    fun:HB_OpenTypeShape
    ...
    fun:HB_ShapeItem
    fun:_ZN7WebCore21ComplexTextController11shapeGlyphsEv
    fun:_ZN7WebCore21ComplexTextController13nextScriptRunEv
 }
 {
    bug_96568b
    Memcheck:Leak
    ...
@@ skipping 503 matching lines @@
    Memcheck:Cond
    fun:encode_one_block
    fun:encode_mcu_huff
    fun:compress_data
    fun:process_data_simple_main
    fun:chromium_jpeg_write_scanlines
    fun:_ZN3gfx9JPEGCodec6EncodeEPKhNS0_11ColorFormatEiiiiPSt6vectorIhSaIhEE
    fun:_ZN3gfx24JPEGEncodedDataFromImageERKNS_5ImageEPSt6vectorIhSaIhEE
    fun:_ZN7history8TopSites12EncodeBitmapEPN3gfx5ImageEP13scoped_refptrI15RefCountedBytesE
    fun:_ZN7history8TopSites16SetPageThumbnailERK4GURLPN3gfx5ImageERK14ThumbnailScore
-   fun:_ZN7history17ExpireHistoryTest14AddExampleDataEPxPN4base4TimeE
+   fun:_ZN7history17ExpireHistoryTest14AddExampleDataEP?PN4base4TimeE
    fun:_ZN7history*ExpireHistoryTest_*
 }
 {
    bug_101781_b
    Memcheck:Value4
    fun:encode_one_block
    fun:encode_mcu_huff
    fun:compress_data
    fun:process_data_simple_main
    fun:chromium_jpeg_write_scanlines
    fun:_ZN3gfx9JPEGCodec6EncodeEPKhNS0_11ColorFormatEiiiiPSt6vectorIhSaIhEE
    fun:_ZN3gfx24JPEGEncodedDataFromImageERKNS_5ImageEPSt6vectorIhSaIhEE
    fun:_ZN7history8TopSites12EncodeBitmapEPN3gfx5ImageEP13scoped_refptrI15RefCountedBytesE
    fun:_ZN7history8TopSites16SetPageThumbnailERK4GURLPN3gfx5ImageERK14ThumbnailScore
-   fun:_ZN7history17ExpireHistoryTest14AddExampleDataEPxPN4base4TimeE
+   fun:_ZN7history17ExpireHistoryTest14AddExampleDataEP?PN4base4TimeE
    fun:_ZN7history*ExpireHistoryTest_*
 }
 {
    bug_101781_c
+   Memcheck:Value8
+   fun:encode_one_block
+   fun:encode_mcu_huff
+   fun:compress_data
+   fun:process_data_simple_main
+   fun:chromium_jpeg_write_scanlines
+   fun:_ZN3gfx9JPEGCodec6EncodeEPKhNS0_11ColorFormatEiiiiPSt6vectorIhSaIhEE
+   fun:_ZN3gfx24JPEGEncodedDataFromImageERKNS_5ImageEPSt6vectorIhSaIhEE
+   fun:_ZN7history8TopSites12EncodeBitmapEPN3gfx5ImageEP13scoped_refptrI15RefCountedBytesE
+   fun:_ZN7history8TopSites16SetPageThumbnailERK4GURLPN3gfx5ImageERK14ThumbnailScore
+   fun:_ZN7history17ExpireHistoryTest14AddExampleDataEP?PN4base4TimeE
+   fun:_ZN7history*ExpireHistoryTest_*
+}
+{
+   bug_101781_d
    Memcheck:Cond
    fun:_ZN7testing8internal11CmpHelperGEIddEENS_15AssertionResultEPKcS4_RKT_RKT0_
    fun:_ZN3gfx31JPEGCodec_EncodeDecodeRGBA_Test8TestBodyEv
 }
 #-----------------------------------------------------------------------
 # 4. These only occur on our Google workstations
 {
    bug_todo_freeres
    Memcheck:Free
    fun:free
@@ skipping 20 matching lines @@
    obj:/lib/libselinux.so.1
    obj:/lib/libselinux.so.1
 }
 {
    bug_todo_grep
    Memcheck:Leak
    fun:malloc
    obj:/bin/grep
    obj:/bin/grep
 }