Suppress valgrind errors in Apple libraries

TEST=check Mac valgrind bot
BUG=15819

Review URL: http://codereview.chromium.org/149129

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@19831 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/suppressions_mac.txt

@@ -274,3 +274,21 @@
    fun:_ZN7testing8UnitTest3RunEv
    fun:main
 }
+
+{
+   bug_15819
+   Memcheck:Cond
+   fun:_ZNK10CMMMtxOnly10ConvertMinE10CMM3x3Type10CMM3x1TypeR12CMMMinBuffermm
+   ...
+   fun:CGContextDrawImage
+   fun:_ZN3gfx17CGImageToSkBitmapEP7CGImage
+}
+
+{
+   bug_15819
+   Memcheck:Value4
+   fun:_ZNK10CMMConvLut7ConvertER10CMMMinBitsP14CMMRuntimeInfomm
+   ...
+   fun:CGContextDrawImage
+   fun:_ZN3gfx17CGImageToSkBitmapEP7CGImage
+}