Adds new libcast_media shared library for cast_shell media

Starting with just the init/finalize functions.

BUG=

Review URL: https://codereview.chromium.org/1140583002

Cr-Commit-Position: refs/heads/master@{#329687}

chromecast/browser/cast_browser_main_parts.cc

@@ -33,6 +33,7 @@
 #include "chromecast/common/platform_client_auth.h"
 #include "chromecast/media/base/key_systems_common.h"
 #include "chromecast/net/connectivity_checker.h"
+#include "chromecast/public/cast_media_shlib.h"
 #include "chromecast/public/cast_sys_info.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/gpu_data_manager.h"
@@ -286,10 +287,10 @@ void CastBrowserMainParts::PreMainMessageLoopRun() {
   cast_browser_process_->SetPrefService(
       PrefServiceHelper::CreatePrefService(pref_registry.get()));
 
+  const base::CommandLine* cmd_line = base::CommandLine::ForCurrentProcess();
 #if defined(OS_ANDROID)
   ::media::SetMediaClientAndroid(new media::CastMediaClientAndroid());
 #else
-  const base::CommandLine* cmd_line = base::CommandLine::ForCurrentProcess();
   if (cmd_line->HasSwitch(switches::kEnableCmaMediaPipeline))
     ::media::SetBrowserCdmFactory(new media::CastBrowserCdmFactory());
 #endif  // defined(OS_ANDROID)
@@ -315,6 +316,8 @@ void CastBrowserMainParts::PreMainMessageLoopRun() {
   cast_browser_process_->SetRemoteDebuggingServer(
       make_scoped_ptr(new RemoteDebuggingServer()));
 
+  media::CastMediaShlib::Initialize(cmd_line->argv());
+
   cast_browser_process_->SetCastService(CastService::Create(
       cast_browser_process_->browser_context(),
       cast_browser_process_->pref_service(),
@@ -372,6 +375,8 @@ void CastBrowserMainParts::PostMainMessageLoopRun() {
   cast_browser_process_.reset();
   DeregisterKillOnAlarm();
 #endif
+
+  media::CastMediaShlib::Finalize();
 }
 
 }  // namespace shell

chromecast/chromecast.gyp

@@ -38,6 +38,7 @@
       'sources': [
         'public/cast_egl_platform.h',
         'public/cast_egl_platform_shlib.h',
+        'public/cast_media_shlib.h',
         'public/cast_sys_info.h',
         'public/chromecast_export.h',
         'public/graphics_properties_shlib.h',

chromecast/media/base/cast_media_default.cc

+// Copyright 2015 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 "chromecast/public/cast_media_shlib.h"
+
+namespace chromecast {
+namespace media {
+
+void CastMediaShlib::Initialize(const std::vector<std::string>& argv) {
+}
+
+void CastMediaShlib::Finalize() {
+}
+
+}  // namespace media
+}  // namespace chromecast

chromecast/media/media.gyp

@@ -6,6 +6,8 @@
   'variables': {
     'chromium_code': 1,
     'chromecast_branding%': 'Chromium',
+    'libcast_media_gyp%': '',
+    'use_default_libcast_media%': 1,
   },
   'targets': [
     {
@@ -15,6 +17,7 @@
         '../../base/base.gyp:base',
         '../../crypto/crypto.gyp:crypto',
         '../../third_party/widevine/cdm/widevine_cdm.gyp:widevine_cdm_version_h',
+        '<(libcast_media_gyp):libcast_media_1.0',
       ],
       'sources': [
         'base/decrypt_context.cc',
@@ -294,5 +297,24 @@
         'cma/test/run_all_unittests.cc',
       ],
     },
+  ], # end of targets
+  'conditions': [
+    ['use_default_libcast_media==1', {
+      'targets': [
+        {
+          'target_name': 'libcast_media_1.0',
+          'type': 'shared_library',
+          'dependencies': [
+            '../../chromecast/chromecast.gyp:cast_public_api'
+          ],
+          'include_dirs': [
+            '../..',
+          ],
+          'sources': [
+            'base/cast_media_default.cc',
+          ],
+        }
+      ]
+    }],
   ],
 }

chromecast/public/cast_media_shlib.h

+// Copyright 2015 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.
+
+#ifndef CHROMECAST_PUBLIC_CAST_MEDIA_SHLIB_H_
+#define CHROMECAST_PUBLIC_CAST_MEDIA_SHLIB_H_
+
+#include <string>
+#include <vector>
+
+#include "chromecast_export.h"
+
+namespace chromecast {
+namespace media {
+
+class CHROMECAST_EXPORT CastMediaShlib {
+ public:
+  // Performs platform-specific one-time initialization for media systems and
+  // hardware resources. Called at startup in browser process before main
+  // message loop begins.
+  static void Initialize(const std::vector<std::string>& argv);
+
+  // Performs platform-specific one-time teardown of media systems and hardware
+  // resources. Called at browser process exit.
+  static void Finalize();
+};
+
+}  // namespace media
+}  // namespace chromecast
+
+#endif  // CHROMECAST_PUBLIC_CAST_MEDIA_SHLIB_H_