add JSONP option to output of skpdiff

experimental/skpdiff/main.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #define __NO_STD_VECTOR // Uses cl::vectpr instead of std::vectpr
 #define __NO_STD_STRING // Uses cl::STRING_CLASS instead of std::string
 #include <CL/cl.hpp>
@@ skipping 11 matching lines @@
 
 #include "SkForceLinking.h"
 __SK_FORCE_IMAGE_DECODER_LINKING;
 
 // Command line argument definitions go here
 DEFINE_bool2(list, l, false, "List out available differs");
 DEFINE_string2(differs, d, "", "The names of the differs to use or all of them by default");
 DEFINE_string2(folders, f, "", "Compare two folders with identical subfile names: <baseline folder> <test folder>");
 DEFINE_string2(patterns, p, "", "Use two patterns to compare images: <baseline> <test>");
 DEFINE_string2(output, o, "skpdiff_output.json", "Writes the output of these diffs to output: <output>");
+DEFINE_bool(jsonp, true, "Output JSON with padding");
 
 /// A callback for any OpenCL errors
 CL_CALLBACK void error_notify(const char* errorInfo, const void* privateInfoSize, ::size_t cb, void* userData) {
     SkDebugf("OpenCL error notify: %s\n", errorInfo);
     exit(1);
 }
 
 /// Creates a device and context with OpenCL
 static bool init_device_and_context(cl::Device* device, cl::Context* context) {
     // Query for a platform
@@ skipping 132 matching lines @@
     }
 
     // Perform a pattern diff if one is requested
     if (!FLAGS_patterns.isEmpty()) {
         ctx.diffPatterns(FLAGS_patterns[0], FLAGS_patterns[1]);
     }
 
     // Output to the file specified
     if (!FLAGS_output.isEmpty()) {
         SkFILEWStream outputStream(FLAGS_output[0]);
-        ctx.outputRecords(outputStream);
+        ctx.outputRecords(outputStream, FLAGS_jsonp);
     }
 
     return 0;
 }