make color emoji gm portable

tools/sk_tool_utils.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 "sk_tool_utils.h"
 #include "sk_tool_utils_flags.h"
 
 #include "SkBitmap.h"
 #include "SkCanvas.h"
 #include "SkCommonFlags.h"
 #include "SkShader.h"
 #include "SkTestScalerContext.h"
 #include "SkTextBlob.h"
 
 DEFINE_bool(portableFonts, false, "Use portable fonts");
 DEFINE_bool(resourceFonts, false, "Use resource fonts");
 
 namespace sk_tool_utils {
 
+const char* platform_os_emoji() {
+    const char* osName = platform_os_name();
+    if (!strcmp(osName, "Android") || !strcmp(osName, "Unbuntu")) {
+        return "CBDT";
+    }
+    if (!strncmp(osName, "Mac", 3)) {
+        return "SBIX";
+    }
+    return "";
+}
+
 const char* platform_os_name() {
     for (int index = 0; index < FLAGS_key.count(); index += 2) {
         if (!strcmp("os", FLAGS_key[index])) {
             return FLAGS_key[index + 1];
         }
     }
     // when running SampleApp or dm without a --key pair, omit the platform name
     return "";
 }
 
@@ skipping 90 matching lines @@
     paint.textToGlyphs(text, len, glyphs.begin());
 
     paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
     const SkTextBlobBuilder::RunBuffer& run = builder->allocRun(paint, glyphs.count(), x, y,
                                                                 NULL);
     memcpy(run.glyphs, glyphs.begin(), glyphs.count() * sizeof(uint16_t));
 }
 
 
 }  // namespace sk_tool_utils