Valgrind: Add suppression for a new leak in SkCreateCGImageRefWithColorspace.

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 # running overnight and removing outdated bugs/suppressions.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 2211 matching lines @@
    fun:_ZN7WebCore23V8AbstractEventListener11handleEventEPNS_22ScriptExecutionContextEPNS_5EventE
    fun:_ZN7WebCore11EventTarget18fireEventListenersEPNS_5EventEPNS_15EventTargetDataERN3WTF6VectorINS_23RegisteredEventListenerELm1EEE
 }
 {
    bug_106912
    Memcheck:Leak
    fun:_Znw*
    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
+}