SkTHash: hash from fnptr to functor type

tests/ChecksumTest.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkChecksum.h"
 #include "SkRandom.h"
 #include "Test.h"
@@ skipping 34 matching lines @@
             tweaked[j] = rand.nextU();
             const uint32_t tweakedHash = algorithm(tweaked, kBytes);
             ASSERT(tweakedHash != hash);
             ASSERT(tweakedHash == algorithm(tweaked, kBytes));
             tweaked[j] = saved;
         }
     }
 }
 
 DEF_TEST(GoodHash, r) {
-    ASSERT(SkGoodHash(( int32_t)4) ==  614249093);  // 4 bytes.  Hits SkChecksum::Mix fast path.
-    ASSERT(SkGoodHash((uint32_t)4) ==  614249093);  // (Ditto)
+    ASSERT(SkGoodHash()(( int32_t)4) ==  614249093);  // 4 bytes.  Hits SkChecksum::Mix fast path.
+    ASSERT(SkGoodHash()((uint32_t)4) ==  614249093);  // (Ditto)
 
     // None of these are 4 byte sized, so they use SkChecksum::Murmur3, not SkChecksum::Mix.
-    ASSERT(SkGoodHash((uint64_t)4) == 3491892518);
-    ASSERT(SkGoodHash((uint16_t)4) ==  899251846);
-    ASSERT(SkGoodHash( (uint8_t)4) ==  962700458);
+    ASSERT(SkGoodHash()((uint64_t)4) == 3491892518);
+    ASSERT(SkGoodHash()((uint16_t)4) ==  899251846);
+    ASSERT(SkGoodHash()( (uint8_t)4) ==  962700458);
 
     // Tests SkString is correctly specialized.
-    ASSERT(SkGoodHash(SkString("Hi")) == 55667557);
+    ASSERT(SkGoodHash()(SkString("Hi")) == 55667557);
 }