Fix SVG flag iOS linking

tools/flags/SkCommonFlags.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 "SkCommonFlags.h"
 #include "SkOSFile.h"
 
@@ skipping 30 matching lines @@
 DEFINE_bool(preAbandonGpuContext, false, "Test abandoning the GrContext before running the test.");
 
 DEFINE_bool(abandonGpuContext, false, "Test abandoning the GrContext after running each test.");
 
 DEFINE_bool(releaseAndAbandonGpuContext, false,
             "Test releasing all gpu resources and abandoning the GrContext after running each "
             "test");
 
 DEFINE_string(skps, "skps", "Directory to read skps from.");
 
+DEFINE_string(svgs, "", "Directory to read SVGs from, or a single SVG file.");
+
 DEFINE_int32(threads, -1, "Run threadsafe tests on a threadpool with this many extra threads, "
                           "defaulting to one extra thread per core.");
 
 DEFINE_bool2(verbose, v, false, "enable verbose output from the test driver.");
 
 DEFINE_bool2(veryVerbose, V, false, "tell individual tests to be verbose.");
 
 DEFINE_string2(writePath, w, "", "If set, write bitmaps here as .pngs.");
 
 DEFINE_string(key, "",
@@ skipping 36 matching lines @@
                 SkDebugf("No supported images found in %s!\n", flag);
                 return false;
             }
         } else {
             // Also add the value if it is a single image
             output->push_back() = flag;
         }
     }
     return true;
 }