Various OpenGLUI changes:

runtime/embedders/openglui/common/sample.h

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef EMBEDDERS_OPENGLUI_COMMON_SAMPLE_H_
 #define EMBEDDERS_OPENGLUI_COMMON_SAMPLE_H_
 
 #include "embedders/openglui/common/resource.h"
 
+extern Resource* MakePlatformResource(const char *path);
+
 class Sample {
   public:
     explicit Sample(const char* path)
-        : resource_(path),
-          buffer_(NULL),
+        : buffer_(NULL),
           length_(0) {
+      resource_ = MakePlatformResource(path);
     }
 
     ~Sample() {
       Unload();
+      delete resource_;
     }
 
     const char* path() {
-      return resource_.path();
+      return resource_->path();
     }
 
     uint8_t* buffer() {
       return buffer_;
     }
 
     off_t length() {
       return length_;
     }
 
     int32_t Load() {
       int32_t rtn = -1;
-      if (resource_.Open() == 0) {
-        buffer_ = new uint8_t[length_ = resource_.length()];
-        rtn = resource_.Read(buffer_, length_);
-        resource_.Close();
+      if (resource_->Open() == 0) {
+        buffer_ = new uint8_t[length_ = resource_->length()];
+        rtn = resource_->Read(buffer_, length_);
+        resource_->Close();
       }
       return rtn;
     }
 
     void Unload() {
       if (buffer_ != NULL) {
         delete[] buffer_;
         buffer_ = NULL;
       }
       length_ = 0;
     }
 
   private:
     friend class SoundService;
-    Resource resource_;
+    Resource* resource_;
     uint8_t* buffer_;
     off_t length_;
 };
 
 #endif  // EMBEDDERS_OPENGLUI_COMMON_SAMPLE_H_