Fix valgrind suppressions (again)

tools/valgrind.supp

Index: tools/valgrind.supp
===================================================================
--- tools/valgrind.supp	(revision 13448)
+++ tools/valgrind.supp	(working copy)
@@ -157,3 +157,24 @@
     Memcheck:Addr2
     fun:_ZN22GrAAConvexPathRenderer10onDrawPathERK11SkStrokeRecP12GrDrawTargetb
 }
+{
+    gpu_issue_12
+    Memcheck:Addr8
+    fun:_ZN22GrAAConvexPathRenderer10onDrawPathERK6SkPathRK11SkStrokeRecP12GrDrawTargetb
+}
+{
+    gpu_issue_13
+    Memcheck:Addr4
+    fun:_ZNK7SkPoint24distanceToLineBetweenSqdERKS_S1_PNS_4SideE
+    fun:_ZN22GrAAConvexPathRenderer10onDrawPathERK6SkPathRK11SkStrokeRecP12GrDrawTargetb
+}
+{
+    gpu_issue_14
+    Memcheck:Addr4
+    fun:_ZN22GrAAConvexPathRenderer10onDrawPathERK6SkPathRK11SkStrokeRecP12GrDrawTargetb
+}
+{
+    gpu_issue_15
+    Memcheck:Addr2
+    fun:_ZN22GrAAConvexPathRenderer10onDrawPathERK6SkPathRK11SkStrokeRecP12GrDrawTargetb
+}