re-land 187283 -- switch to skia's version of SkFontHost_fontconfig

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 # running overnight and removing outdated bugs/suppressions.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 169 matching lines @@
    fun:FcFontSort
 }
 {
    bug_46177_e (Third Party)
    Memcheck:Leak
    ...
    fun:FcCharSetFindLeafCreate
    fun:FcCharSetAddChar
 }
 {
+   bug_181572 (Skia -- global cache of typefaces)
+   Memcheck:Leak
+   fun:_Znw*
+   fun:_ZN10SkFontHost14CreateTypefaceEPK10SkTypefacePKcNS0_5StyleE
+   fun:_ZN10SkTypeface14CreateFromNameEPKcNS_5StyleE
+}
+{
    dlopen invalid read, probably a bug in glibc.  TODO(dkegel): file glibc bug
    Memcheck:Uninitialized
    ...
    fun:dlopen@@GLIBC_2.1
    fun:PR_LoadLibraryWithFlags
 }
 {
    dlopen leak on error. See http://sourceware.org/bugzilla/show_bug.cgi?id=12878.
    Memcheck:Leak
    fun:calloc
@@ skipping 6599 matching lines @@
    fun:_ZN7WebCore5Frame21dragImageForSelectionEv
    fun:_ZN7WebCore27createDragImageForSelectionEPNS_5FrameE
    fun:_ZN7WebCore14DragController9startDragEPNS_5FrameERKNS_9DragStateENS_13DragOperationERKNS_18PlatformMouseEventERKNS_8IntPointE
    fun:_ZN7WebCore12EventHandler10handleDragERKNS_28MouseEventWithHitTestResultsENS_19CheckDragHysteresisE
    fun:_ZN7WebCore12EventHandler23handleMouseDraggedEventERKNS_28MouseEventWithHitTestResultsE
    fun:_ZN7WebCore12EventHandler20handleMouseMoveEventERKNS_18PlatformMouseEventEPNS_13HitTestResultEb
    fun:_ZN7WebCore12EventHandler28passMouseMoveEventToSubframeERNS_28MouseEventWithHitTestResultsEPNS_5FrameEPNS_13HitTestResultE
    fun:_ZN7WebCore12EventHandler20handleMouseMoveEventERKNS_18PlatformMouseEventEPNS_13HitTestResultEb
    fun:_ZN7WebCore12EventHandler10mouseMovedERKNS_18PlatformMouseEventE
 }