Add path utils, plus a test for it.

gm/gm_expectations.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.
  */
 
 #include "gm_expectations.h"
 #include "SkBitmapHasher.h"
 #include "SkImageDecoder.h"
+#include "SkOSPathUtils.h"
 
 #define DEBUGFAIL_SEE_STDERR SkDEBUGFAIL("see stderr for message")
 
 // These constants must be kept in sync with the JSONKEY_ constants in
 // display_json_results.py !
 const static char kJsonKey_ActualResults[]   = "actual-results";
 const static char kJsonKey_ActualResults_Failed[]        = "failed";
 const static char kJsonKey_ActualResults_FailureIgnored[]= "failure-ignored";
 const static char kJsonKey_ActualResults_NoComparison[]  = "no-comparison";
 const static char kJsonKey_ActualResults_Succeeded[]     = "succeeded";
 const static char kJsonKey_ActualResults_AnyStatus_BitmapHash[]  = "bitmap-64bitMD5";
 
 const static char kJsonKey_ExpectedResults[] = "expected-results";
 const static char kJsonKey_ExpectedResults_AllowedBitmapHashes[] = "allowed-bitmap-64bitMD5s";
 const static char kJsonKey_ExpectedResults_IgnoreFailure[]           = "ignore-failure";
 
 namespace skiagm {
 
     void gm_fprintf(FILE *stream, const char format[], ...) {
         va_list args;
         va_start(args, format);
         fprintf(stream, "GM: ");
         vfprintf(stream, format, args);
         va_end(args);
     }
 
-    SkString SkPathJoin(const char *rootPath, const char *relativePath) {
-        SkString result(rootPath);
-        if (!result.endsWith(SkPATH_SEPARATOR)) {
-            result.appendUnichar(SkPATH_SEPARATOR);
-        }
-        result.append(relativePath);
-        return result;
-    }
-
     // TODO(epoger): This currently assumes that the result SkHashDigest was
     // generated as an SkHashDigest of an SkBitmap.  We'll need to allow for other
     // hash types to cover non-bitmaps.
     Json::Value ActualResultAsJsonValue(const SkHashDigest& result) {
         Json::Value jsonValue;
         jsonValue[kJsonKey_ActualResults_AnyStatus_BitmapHash] = asJsonValue(result);
         return jsonValue;
     }
 
     Json::Value CreateJsonTree(Json::Value expectedResults,
@@ skipping 168 matching lines @@
         Json::Reader reader;
         if (!reader.parse(bytes, bytes+size, *jsonRoot)) {
             gm_fprintf(stderr, "error parsing JSON file %s\n", jsonPath);
             DEBUGFAIL_SEE_STDERR;
             return false;
         }
         return true;
     }
 
 }