Fix memory leaks in BufferedDataSource, BufferedResourceLoader and SimpleDataSource unit tests.

webkit/glue/media/buffered_resource_loader_unittest.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <algorithm>
 
 #include "base/format_macros.h"
 #include "base/stringprintf.h"
 #include "net/base/net_errors.h"
 #include "net/http/http_util.h"
@@ skipping 56 matching lines @@
 class BufferedResourceLoaderTest : public testing::Test {
  public:
   BufferedResourceLoaderTest() {
     url_loader_ = new NiceMock<MockWebURLLoader>();
 
     for (int i = 0; i < kDataSize; ++i)
       data_[i] = i;
   }
 
   virtual ~BufferedResourceLoaderTest() {
-    ignore_result(frame_.release());
   }
 
   void Initialize(const char* url, int first_position, int last_position) {
     gurl_ = GURL(url);
     first_position_ = first_position;
     last_position_ = last_position;
 
     frame_.reset(new NiceMock<MockWebFrame>());
 
     loader_ = new BufferedResourceLoader(gurl_,
@@ skipping 388 matching lines @@
   WriteLoader(70, 40);
   AllowLoaderDefer();
 
   EXPECT_CALL(*this, ReadCallback(net::ERR_CACHE_MISS));
   ReadLoader(20, 5, buffer);
   StopWhenLoad();
 }
 // TODO(hclam): add unit test for defer loading.
 
 }  // namespace webkit_glue
-