Valgrind: Add suppression for a new leak in SkCreateCGImageRefWithColorspace.

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 12a3438b3593d5be867aab75c0d3be1ba7b8d1cc..583429aa58f9ca106823572e90c047d14e389949 100644
--- a/tools/valgrind/memcheck/suppressions_mac.txt
+++ b/tools/valgrind/memcheck/suppressions_mac.txt
@@ -2229,3 +2229,25 @@
    fun:_ZN15tracked_objects10ThreadData23InitializeThreadContextERKSs
    fun:_ZN4base14PlatformThread7SetNameEPKc
 }
+{
+   bug_107154
+   Memcheck:Leak
+   fun:malloc_zone_malloc
+   fun:_CFRuntimeCreateInstance
+   fun:CGTypeCreateInstanceWithAllocator
+   fun:CGTypeCreateInstance
+   fun:CGImageCreate
+   fun:_Z32SkCreateCGImageRefWithColorspaceRK8SkBitmapP12CGColorSpace
+   fun:_ZN7WebCoreL17resolveColorSpaceERK8SkBitmapP12CGColorSpace
+   fun:_ZN7WebCore10ImageFrame9setStatusENS0_11FrameStatusE
+   fun:_ZN7WebCore15PNGImageDecoder11pngCompleteEv
+   fun:_ZN7WebCoreL11pngCompleteEP14png_struct_defP15png_info_struct
+   fun:wk_png_push_read_chunk
+   fun:wk_png_process_data
+   fun:_ZN7WebCore14PNGImageReader6decodeERKNS_12SharedBufferEb
+   fun:_ZN7WebCore15PNGImageDecoder6decodeEb
+   fun:_ZN7WebCore15PNGImageDecoder18frameBufferAtIndexEm
+   fun:_ZN7WebCore11ImageSource18createFrameAtIndexEm
+   fun:_ZN6WebKit8WebImage8fromDataERKNS_7WebDataERKNS_7WebSizeE
+   fun:_ZNK11webkit_glue12ImageDecoder6DecodeEPKhm
+}