Valgrind: Add a suppression for a leak in Skia.

tools/valgrind/memcheck/suppressions_mac.txt

 # There are three kinds of suppressions in this file:
 # 1. Third party stuff we have no control over.
 #
 # 2. Intentional unit test errors, 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.
 # Periodically we should sweep this file and the bug tracker clean by
 # running overnight and removing outdated bugs/suppressions.
@@ skipping 2257 matching lines @@
    fun:_ZN7WebCore13InlineFlowBox5paintERNS_9PaintInfoERKNS_8IntPointEii
    fun:_ZN7WebCore13RootInlineBox5paintERNS_9PaintInfoERKNS_8IntPointEii
    fun:_ZNK7WebCore17RenderLineBoxList5paintEPNS_20RenderBoxModelObjectERNS_9PaintInfoERKNS_8IntPointE
    fun:_ZN7WebCore11RenderBlock13paintContentsERNS_9PaintInfoERKNS_8IntPointE
    fun:_ZN7WebCore11RenderBlock11paintObjectERNS_9PaintInfoERKNS_8IntPointE
    fun:_ZN7WebCore11RenderBlock5paintERNS_9PaintInfoERKNS_8IntPointE
    fun:_ZN7WebCore11RenderBlock13paintChildrenERNS_9PaintInfoERKNS_8IntPointE
    fun:_ZN7WebCore11RenderBlock13paintContentsERNS_9PaintInfoERKNS_8IntPointE
    fun:_ZN7WebCore11RenderBlock11paintObjectERNS_9PaintInfoERKNS_8IntPointE
    fun:_ZN7WebCore11RenderBlock5paintERNS_9PaintInfoERKNS_8IntPointE
- }
+}
+{
+   bug_107177
+   Memcheck:Leak
+   fun:calloc
+   fun:CGGlyphBitmapCreate
+   fun:CGFontCreateGlyphBitmap8
+   fun:create_missing_bitmaps
+   fun:CGGlyphLockLockGlyphBitmaps
+   fun:ripc_RenderGlyphs
+   fun:ripc_DrawGlyphs
+   fun:draw_glyphs
+   fun:CGContextShowGlyphs
+   fun:_ZN9Offscreen5getCGERK19SkScalerContext_MacRK7SkGlyphbtPm
+   fun:_ZN19SkScalerContext_Mac13generateImageERK7SkGlyph
+   fun:_ZN15SkScalerContext8getImageERK7SkGlyph
+   fun:_ZN12SkGlyphCache9findImageERK7SkGlyph
+   fun:_ZL22D1G_NoBounder_RectClipRK12SkDraw1GlyphiiRK7SkGlyph
+   fun:_ZNK6SkDraw11drawPosTextEPKcmPKffiRK7SkPaint
+   fun:_ZN8SkDevice11drawPosTextERK6SkDrawPKvmPKffiRK7SkPaint
+   fun:_ZN8SkCanvas11drawPosTextEPKvmPK7SkPointRK7SkPaint
+   fun:_ZNK7WebCore4Font10drawGlyphsEPNS_15GraphicsContextEPKNS_14SimpleFontDataERKNS_11GlyphBufferEiiRKNS_10FloatPointE
+   fun:_ZNK7WebCore4Font15drawGlyphBufferEPNS_15GraphicsContextERKNS_7TextRunERKNS_11GlyphBufferERKNS_10FloatPointE
+   fun:_ZNK7WebCore4Font14drawSimpleTextEPNS_15GraphicsContextERKNS_7TextRunERKNS_10FloatPointEii
+   fun:_ZNK7WebCore4Font8drawTextEPNS_15GraphicsContextERKNS_7TextRunERKNS_10FloatPointEii
+   fun:_ZN7WebCore15GraphicsContext8drawTextERKNS_4FontERKNS_7TextRunERKNS_10FloatPointEii
+}