Widen suppression for 141293 Exclude ImageTest.PNGEncodeFromSkiaDecodeToPlatform on mac valgrind

tools/valgrind/memcheck/suppressions_mac.txt

Index: tools/valgrind/memcheck/suppressions_mac.txt
diff --git a/tools/valgrind/memcheck/suppressions_mac.txt b/tools/valgrind/memcheck/suppressions_mac.txt
index e3eba8f14178bc4ee146f84426fb0fa3c3a05778..7066cf7b244618845069f95a1ae2a8d2d95f365e 100644
--- a/tools/valgrind/memcheck/suppressions_mac.txt
+++ b/tools/valgrind/memcheck/suppressions_mac.txt
@@ -317,23 +317,22 @@
    fun:_ZN5media45VideoCaptureDeviceTest_OpenInvalidDevice_Test8TestBodyEv
 }
 {
-  # See http://crbug.com/141293
-  bug_141293
-  Memcheck:Uninitialized
-  fun:deflateEnd
-  fun:deflateSetDictionary
-  fun:deflate
-  fun:png_write_finish_row
-  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:_ZN3gfx8internal14PNGFromNSImageEP7NSImagePSt6vectorIhSaIhEE
-  fun:_ZNK3gfx5Image10ToImagePNGEv
-  fun:_ZN12_GLOBAL__N_143ImageTest_PlatformToPNGEncodeAndDecode_Test8TestBodyEv
+   # See http://crbug.com/141293
+   bug_141293
+   Memcheck:Uninitialized
+   fun:deflateEnd
+   fun:deflateSetDictionary
+   fun:deflate
+   fun:png_write_finish_row
+   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:_ZN3gfx8internal14PNGFromNSImageEP7NSImagePSt6vectorIhSaIhEE
+   fun:_ZNK3gfx5Image10ToImagePNGEv
 }
 
 # 2. Intentional unit test errors, stuff that is somehow a false positive