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

webkit/glue/media/simple_data_source_unittest.cc

 // Copyright (c) 2011 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 "media/base/filters.h"
 #include "media/base/mock_callback.h"
 #include "media/base/mock_filter_host.h"
 #include "media/base/mock_filters.h"
 #include "net/base/net_errors.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
@@ skipping 38 matching lines @@
 
 class SimpleDataSourceTest : public testing::Test {
  public:
   SimpleDataSourceTest() {
     for (int i = 0; i < kDataSize; ++i) {
       data_[i] = i;
     }
   }
 
   virtual ~SimpleDataSourceTest() {
-    ignore_result(frame_.release());
   }
 
   void InitializeDataSource(const char* url,
                             media::MockCallback* callback) {
     gurl_ = GURL(url);
 
     frame_.reset(new NiceMock<MockWebFrame>());
     url_loader_ = new NiceMock<MockWebURLLoader>();
 
     data_source_ = new SimpleDataSource(MessageLoop::current(),
@@ skipping 138 matching lines @@
 }
 
 TEST_F(SimpleDataSourceTest, AsyncRead) {
   InitializeDataSource(kFileUrl, media::NewExpectedCallback());
   RequestSucceeded(true);
   AsyncRead();
   DestroyDataSource();
 }
 
 }  // namespace webkit_glue