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

webkit/glue/media/buffered_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 <algorithm>
 
 #include "base/test/test_timeouts.h"
 #include "media/base/mock_callback.h"
 #include "media/base/mock_filter_host.h"
 #include "media/base/mock_filters.h"
@@ skipping 87 matching lines @@
   BufferedDataSourceTest() {
     message_loop_ = MessageLoop::current();
 
     // Prepare test data.
     for (size_t i = 0; i < sizeof(data_); ++i) {
       data_[i] = i;
     }
   }
 
   virtual ~BufferedDataSourceTest() {
-    ignore_result(frame_.release());
   }
 
   void ExpectCreateAndStartResourceLoader(int start_error) {
     EXPECT_CALL(*data_source_, CreateResourceLoader(_, _))
         .WillOnce(Return(loader_.get()));
 
     EXPECT_CALL(*loader_, Start(NotNull(), NotNull(), NotNull()))
         .WillOnce(
             DoAll(Assign(&error_, start_error),
                   Invoke(this,
@@ skipping 368 matching lines @@
   StopDataSource();
 }
 
 TEST_F(BufferedDataSourceTest, FileHasLoadedState) {
   InitializeDataSource(kFileUrl, net::OK, true, 1024, LOADED);
   ReadDataSourceTimesOut(20, 10);
   StopDataSource();
 }
 
 }  // namespace webkit_glue