Fix GL extension printing on core profiles.

src/gpu/gl/GrGLExtensions.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 "gl/GrGLExtensions.h"
 #include "gl/GrGLDefines.h"
 #include "gl/GrGLUtil.h"
@@ skipping 63 matching lines @@
 }
 
 bool GrGLExtensions::has(const char* ext) const {
     SkString extensionStr(ext);
     int idx = SkTSearch<SkString, extension_compare>(&fStrings.front(),
                                                      fStrings.count(),
                                                      extensionStr,
                                                      sizeof(SkString));
     return idx >= 0;
 }
+
+void GrGLExtensions::print(const char* sep) const {
+    if (NULL == sep) {

[robertphillips, 2013/05/02 19:39:14]

Wouldn't " " be a better default?

[bsalomon, 2013/05/02 19:41:59]

I suppose so.. I could also just assert, was mostly just concerned about somehow
acknowledging the possibility of NULL. I'll make it " ".

+        sep = "";
+    }
+    int cnt = fStrings.count();
+    for (int i = 0; i < cnt; ++i) {
+        GrPrintf("%s%s", fStrings[i].c_str(), (i < cnt - 1) ? sep : "");
+    }
+}
+