Add dump_record to make inspecting before/after SkRecordOptimize easy.

tools/dump_record.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include <stdio.h>
 
 #include "LazyDecodeBitmap.h"
@@ skipping 41 matching lines @@
             putchar('\t');
         }
         puts(NameOf(command));
     }
 
     template <typename T>
     static const char* NameOf(const T&) {
     #define CASE(U) case SkRecords::U##_Type: return #U;
         switch(T::kType) { SK_RECORD_TYPES(CASE); }
     #undef CASE
+        SkDEBUGFAIL("Unknown T");
+        return "Unknown T";
     }
 
     static const char* NameOf(const SkRecords::SaveLayer&) {
         return "\x1b[31;1mSaveLayer\x1b[0m";  // Bold red.
     }
 
     int fIndent;
 };
 
 
@@ skipping 48 matching lines @@
     }
 
     return 0;
 }
 
 #if !defined SK_BUILD_FOR_IOS
 int main(int argc, char * const argv[]) {
     return tool_main(argc, (char**) argv);
 }
 #endif