Revert "Chromium changes to statically link ffmpeg."

chromecast/media/cma/test/run_all_unittests.cc

 // Copyright 2014 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 "base/bind.h"
 #include "base/test/launcher/unit_test_launcher.h"
 #include "base/test/test_suite.h"
 #include "build/build_config.h"
 #include "chromecast/base/metrics/cast_metrics_test_helper.h"
 #include "media/base/media.h"
@@ skipping 15 matching lines @@
 void CmaTestSuite::Initialize() {
   // Run TestSuite::Initialize first so that logging is initialized.
   base::TestSuite::Initialize();
 
   // Some of the chromecast media unit tests require a metrics helper instance.
   // Provide a fake one.
   chromecast::metrics::InitializeMetricsHelperForTesting();
 
   // Initialize the FFMpeg library.
   // Note: at this time, AtExitManager is already present.
-  media::InitializeMediaLibrary();
+  media::InitializeMediaLibraryForTesting();
 }
 
 int main(int argc, char** argv) {
   CmaTestSuite test_suite(argc, argv);
 
   return base::LaunchUnitTests(
       argc, argv, base::Bind(&CmaTestSuite::Run,
                              base::Unretained(&test_suite)));
 }