1 files changed, 77 insertions, 0 deletions
diff --git a/content/renderer/media/crypto/pepper_cdm_wrapper_impl.cc b/content/renderer/media/crypto/pepper_cdm_wrapper_impl.cc
new file mode 100644
index 0000000..f32dc03
--- /dev/null
+++ b/content/renderer/media/crypto/pepper_cdm_wrapper_impl.cc
@@ -0,0 +1,77 @@
+// 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.
+
+#if defined(ENABLE_PEPPER_CDMS)
+#include "content/renderer/media/crypto/pepper_cdm_wrapper_impl.h"
+
+#include "content/renderer/pepper/pepper_plugin_instance_impl.h"
+#include "content/renderer/pepper/pepper_webplugin_impl.h"
+#include "third_party/WebKit/public/platform/WebString.h"
+#include "third_party/WebKit/public/web/WebDocument.h"
+#include "third_party/WebKit/public/web/WebFrame.h"
+#include "third_party/WebKit/public/web/WebHelperPlugin.h"
+#include "third_party/WebKit/public/web/WebPlugin.h"
+#include "third_party/WebKit/public/web/WebView.h"
+
+namespace content {
+
+void WebHelperPluginDeleter::operator()(blink::WebHelperPlugin* plugin) const {
+  plugin->destroy();
+}
+
+scoped_ptr<PepperCdmWrapper> PepperCdmWrapperImpl::Create(
+    blink::WebFrame* frame,
+    const std::string& pluginType) {
+
+  // TODO(jrummell): Convert to DCHECK(frame) once Blink starts passing the
+  // WebFrame to WebContentDecryptionModuleImpl.
+  if (!frame)
+    return scoped_ptr<PepperCdmWrapper>();
+
+  ScopedHelperPlugin helper_plugin(blink::WebHelperPlugin::create(
+      blink::WebString::fromUTF8(pluginType), frame));
+  if (!helper_plugin)
+    return scoped_ptr<PepperCdmWrapper>();
+
+  blink::WebPlugin* plugin = helper_plugin->getPlugin();
+  DCHECK(!plugin->isPlaceholder());  // Prevented by Blink.
+
+  // Only Pepper plugins are supported, so it must ultimately be a ppapi object.
+  PepperWebPluginImpl* ppapi_plugin = static_cast<PepperWebPluginImpl*>(plugin);
+  scoped_refptr<PepperPluginInstanceImpl> plugin_instance =
+      ppapi_plugin->instance();
+  if (!plugin_instance)
+    return scoped_ptr<PepperCdmWrapper>();
+
+  if (!plugin_instance->GetContentDecryptorDelegate())
+    return scoped_ptr<PepperCdmWrapper>();
+
+  return scoped_ptr<PepperCdmWrapper>(
+      new PepperCdmWrapperImpl(helper_plugin.Pass(), plugin_instance));
+}
+
+PepperCdmWrapperImpl::PepperCdmWrapperImpl(
+    ScopedHelperPlugin helper_plugin,
+    const scoped_refptr<PepperPluginInstanceImpl>& plugin_instance)
+    : helper_plugin_(helper_plugin.Pass()),
+      plugin_instance_(plugin_instance) {
+  DCHECK(helper_plugin_);
+  DCHECK(plugin_instance_);
+  // Plugin must be a CDM.
+  DCHECK(plugin_instance_->GetContentDecryptorDelegate());
+}
+
+PepperCdmWrapperImpl::~PepperCdmWrapperImpl() {
+  // Destroy the nested objects in reverse order.
+  plugin_instance_ = NULL;
+  helper_plugin_.reset();
+}
+
+ContentDecryptorDelegate* PepperCdmWrapperImpl::GetCdmDelegate() {
+  return plugin_instance_->GetContentDecryptorDelegate();
+}
+
+}  // namespace content
+
+#endif  // defined(ENABLE_PEPPER_CDMS)