[WIP] Add Context to SkDrawLooper.

src/core/SkTemplatesPriv.h

Index: src/core/SkTemplatesPriv.h
diff --git a/src/core/SkTemplatesPriv.h b/src/core/SkTemplatesPriv.h
index 79ae6093358993917df7cf3261ef4be93a6063e8..c7d61da7cf80e917e5708774b8f43c22763725db 100644
--- a/src/core/SkTemplatesPriv.h
+++ b/src/core/SkTemplatesPriv.h
@@ -20,6 +20,12 @@
 
     #define SK_PLACEMENT_NEW_ARGS(result, classname, storage, storageSize, args)    \
         result = SkNEW_ARGS(classname, args)
+
+    #define SK_PLACEMENT_SAFE_NEW(result, classname, storage, storageSize)   \
+        result = SkNEW(classname)
+
+    #define SK_PLACEMENT_SAFE_NEW_ARGS(result, classname, storage, storageSize, args)    \
+        result = SkNEW_ARGS(classname, args)
 #else
     #include <new>
     #define SK_PLACEMENT_NEW(result, classname, storage, storagesize)       \
@@ -43,6 +49,22 @@
         else                                                                            \
             result = SkNEW_ARGS(classname, args);                                       \
     } while (0)
+
+    #define SK_PLACEMENT_SAFE_NEW(result, classname, storage, storagesize)  \
+    do {                                                                    \
+        if (storagesize >= sizeof(classname))                               \
+            result = new(storage) classname;                                \
+        else                                                                \
+            result = SkNEW(classname);                                      \
+    } while (0)
+
+    #define SK_PLACEMENT_SAFE_NEW_ARGS(result, classname, storage, storagesize, args)   \
+    do {                                                                                \
+        if (storagesize >= sizeof(classname))                                           \
+            result = new(storage) classname args;                                       \
+        else                                                                            \
+            result = SkNEW_ARGS(classname, args);                                       \
+    } while (0)
 #endif
 
 ////////////////////////////////////////////////////////////////////////////////