Broaden suppressions of probably-intentional leaks in AppKit.

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 # running overnight and removing outdated bugs/suppressions.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 82 matching lines @@
    fun:png_write_find_filter
    fun:_cg_png_write_row
    fun:writeOnePng
    fun:_CGImagePluginWritePNG
    fun:CGImageDestinationFinalize
    fun:+[NSBitmapImageRep(NSBitmapImageFileTypeExtensions) representationOfImageRepsInArray:usingType:properties:]
    fun:-[NSBitmapImageRep(NSBitmapImageFileTypeExtensions) representationUsingType:properties:]
    fun:_ZN3gfx8internal24Get1xPNGBytesFromNSImageEP7NSImage
 }
 # Intentional leaks in AppKit, for an OS-level cache. Only appear on the first
-# run of each reboot.
+# run of each reboot.  See also issues 105525, 257276, 340847.
 {
    bug_257276
    Memcheck:Leak
-   fun:malloc_zone_calloc
-   fun:ripr_Path
+   ...
    fun:ripc_DrawPath
    fun:CGContextDrawPath
-   fun:CGContextStrokePath
-   fun:-[NSLayoutManager(NSTextViewSupport) _drawLineForGlyphRange:inContext:from:to:at:thickness:lineOrigin:breakForDescenders:flipped:]
-   fun:-[NSLayoutManager(NSTextViewSupport) _drawLineForGlyphRange:type:baselineOffset:lineFragmentRect:lineFragmentGlyphRange:containerOrigin:isStrikethrough:]
-   fun:-[NSLayoutManager(NSTextViewSupport) drawUnderlineForGlyphRange:underlineType:baselineOffset:lineFragmentRect:lineFragmentGlyphRange:containerOrigin:]
-   fun:-[NSLayoutManager(NSTextViewSupport) _lineGlyphRange:type:lineFragmentRect:lineFragmentGlyphRange:containerOrigin:isStrikethrough:]
-   fun:-[NSLayoutManager(NSTextViewSupport) underlineGlyphRange:underlineType:lineFragmentRect:lineFragmentGlyphRange:containerOrigin:]
-   fun:-[NSLayoutManager(NSPrivate) _drawGlyphsForGlyphRange:atPoint:parameters:]
-   fun:-[NSLayoutManager(NSTextViewSupport) drawGlyphsForGlyphRange:atPoint:]
-   fun:-[NSStringDrawingTextStorage drawTextContainer:withRect:graphicsContext:baselineMode:scrollable:padding:]
-   fun:_NSStringDrawingCore
-   fun:-[NSString(NSExtendedStringDrawing) drawWithRect:options:attributes:]
-   fun:-[HyperlinkButtonCell drawTitle:withFrame:inView:]
 }
 {
    bug_257276_b
    Memcheck:Leak
    fun:malloc_zone_malloc
    fun:_CFRuntimeCreateInstance
    fun:CFNumberCreate
    fun:get_colorspace
    fun:initImagePng
    fun:_CGImagePluginInitPNG
@@ skipping 1494 matching lines @@
    fun:_ZN7WebCore11RenderLayer9paintListEPN3WTF6VectorIPS0_Lm0EEES3_PNS_15GraphicsContextERKNS_7IntRectEjPNS_12RenderObjectEPNS_12RenderRegionEPNS1_7HashMapIPNS_24OverlapTestRequestClientES8_NS1_7PtrHashISH_EENS1_10HashTraitsISH_EENSK_IS8_EEEEj
    fun:_ZN7WebCore11RenderLayer10paintLayerEPS0_PNS_15GraphicsContextERKNS_7IntRectEjPNS_12RenderObjectEPNS_12RenderRegionEPN3WTF7HashMapIPNS_24OverlapTestRequestClientES4_NSB_7PtrHashISE_EENSB_10HashTraitsISE_EENSH_IS4_EEEEj
    fun:_ZN7WebCore11RenderLayer5paintEPNS_15GraphicsContextERKNS_7IntRectEjPNS_12RenderObjectEPNS_12RenderRegionEj
    fun:_ZN7WebCore9FrameView13paintContentsEPNS_15GraphicsContextERKNS_7IntRectE
    fun:_ZN7WebCore10ScrollView5paintEPNS_15GraphicsContextERKNS_7IntRectE
    fun:_ZN5blink12WebFrameImpl16paintWithContextERN7WebCore15GraphicsContextERKNS_7WebRectE
    fun:_ZN5blink12WebFrameImpl5paintEP9CGContextRKNS_7WebRectE
    fun:_ZN5blink11WebViewImpl5paintEP9CGContextRKNS_7WebRectE
 }
 {
-   bug_105525
-   Memcheck:Leak
-   ...
-   fun:CGContextDrawPath
-   fun:CGContextFillPath
-   fun:_NSDrawWindowBackgroundRegion
-   fun:-[NSThemeFrame drawWindowBackgroundRegion:]
-}
-{
    bug_105526_read_a
    Memcheck:Unaddressable
    fun:CGSSetWindowColorSpace
    fun:_ZN10WindowData16UpdateColorSpaceEh
    fun:_ZN10WindowData18FinishConstructionEmymPK4RectPhjP15OpaqueWindowPtrP16OpaqueControlRef
    fun:_ZN10WindowData10InitializeEP14OpaqueEventRef
    fun:_ZN14AppleWindowDef10InitializeEP14OpaqueEventRef
    fun:_ZN8HIObject24HandleClassHIObjectEventEP25OpaqueEventHandlerCallRefP14OpaqueEventRefPv
    fun:_ZN8HIObject9EventHookEP25OpaqueEventHandlerCallRefP14OpaqueEventRefPv
    fun:_ZL23DispatchEventToHandlersP14EventTargetRecP14OpaqueEventRefP14HandlerCallRec
@@ skipping 731 matching lines @@
 }
 {
   bug_340726
   Memcheck:Leak
   fun:_Znw*
   fun:_ZN4base17LoadNativeLibrary*
   fun:_ZN3gfx26InitializeStaticGLBindings*
   fun:_ZN3gfx9GLSurface30InitializeOneOffImplementation*
   fun:_ZN3gfx9GLSurface24InitializeOneOffForTestsEv
 }