Revert "Chromium changes to statically link ffmpeg."

media/cdm/ppapi/external_clear_key/clear_key_cdm.cc

 // Copyright 2013 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/cdm/ppapi/external_clear_key/clear_key_cdm.h"
 
 #include <algorithm>
 #include <cstring>
 #include <sstream>
 
@@ skipping 26 matching lines @@
 #include "media/cdm/ppapi/external_clear_key/ffmpeg_cdm_video_decoder.h"
 
 // Include FFmpeg avformat.h for av_register_all().
 extern "C" {
 // Temporarily disable possible loss of data warning.
 MSVC_PUSH_DISABLE_WARNING(4244);
 #include <libavformat/avformat.h>
 MSVC_POP_WARNING();
 }  // extern "C"
 
+// TODO(tomfinegan): When COMPONENT_BUILD is not defined an AtExitManager must
+// exist before the call to InitializeFFmpegLibraries(). This should no longer
+// be required after http://crbug.com/91970 because we'll be able to get rid of
+// InitializeFFmpegLibraries().
 #if !defined COMPONENT_BUILD
 static base::AtExitManager g_at_exit_manager;
 #endif
 
-// Prepare media library.
+// TODO(tomfinegan): InitializeFFmpegLibraries() and |g_cdm_module_initialized|
+// are required for running in the sandbox, and should no longer be required
+// after http://crbug.com/91970 is fixed.
 static bool InitializeFFmpegLibraries() {
-  media::InitializeMediaLibrary();
+  base::FilePath file_path;
+  CHECK(PathService::Get(base::DIR_MODULE, &file_path));
+  CHECK(media::InitializeMediaLibrary(file_path));
   return true;
 }
+
 static bool g_ffmpeg_lib_initialized = InitializeFFmpegLibraries();
-
 #endif  // CLEAR_KEY_CDM_USE_FFMPEG_DECODER
 
 const char kClearKeyCdmVersion[] = "0.1.0.1";
 const char kExternalClearKeyKeySystem[] = "org.chromium.externalclearkey";
 const char kExternalClearKeyDecryptOnlyKeySystem[] =
     "org.chromium.externalclearkey.decryptonly";
 const char kExternalClearKeyFileIOTestKeySystem[] =
     "org.chromium.externalclearkey.fileiotest";
 const char kExternalClearKeyCrashKeySystem[] =
     "org.chromium.externalclearkey.crash";
@@ skipping 147 matching lines @@
  public:
   explicit ScopedResetter(Type* object) : object_(object) {}
   ~ScopedResetter() { object_->Reset(); }
 
  private:
   Type* const object_;
 };
 
 void INITIALIZE_CDM_MODULE() {
 #if defined(CLEAR_KEY_CDM_USE_FFMPEG_DECODER)
+  DVLOG(2) << "FFmpeg libraries initialized: " << g_ffmpeg_lib_initialized;
   av_register_all();
 #endif  // CLEAR_KEY_CDM_USE_FFMPEG_DECODER
 }
 
 void DeinitializeCdmModule() {
 }
 
 void* CreateCdmInstance(int cdm_interface_version,
                         const char* key_system, uint32_t key_system_size,
                         GetCdmHostFunc get_cdm_host_func,
@@ skipping 679 matching lines @@
 void ClearKeyCdm::OnFileIOTestComplete(bool success) {
   DVLOG(1) << __FUNCTION__ << ": " << success;
   std::string message = GetFileIOTestResultMessage(success);
   host_->OnSessionMessage(last_session_id_.data(), last_session_id_.length(),
                           cdm::kLicenseRequest, message.data(),
                           message.length(), NULL, 0);
   file_io_test_runner_.reset();
 }
 
 }  // namespace media