Add Stubbed implementation of WebCDM* interfaces for unprefixed EME APIs.

content/renderer/media/renderer_webcdm_impl.cc

+// Copyright (c) 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 "content/renderer/media/renderer_webcdm_impl.h"
+
+#include "base/logging.h"
+#include "third_party/WebKit/public/platform/WebString.h"
+#include "third_party/WebKit/public/platform/WebURL.h"
+
+namespace content {
+
+class RendererWebCDMSessionImpl : public WebKit::WebCDMSession {
+ public:
+  RendererWebCDMSessionImpl(WebKit::WebCDMSession::Client* client);
+  virtual ~RendererWebCDMSessionImpl();
+
+  // WebKit::WebCDMSession

[scherkus (not reviewing), 2013/06/07 18:07:47]

nit: ... implementation.

[ddorwin, 2013/06/10 22:53:01]

Done.

+  virtual const WebKit::WebString& sessionId() const { return session_id_; }
+  virtual void generateKeyRequest(const WebKit::WebString& mimeType,

[scherkus (not reviewing), 2013/06/07 18:07:47]

unix_hacker var names

[ddorwin, 2013/06/10 22:53:01]

Done.

+                                  const unsigned char* initData,
+                                  unsigned initDataLength);
+  virtual void update(const unsigned char* key, unsigned keyLength);

[scherkus (not reviewing), 2013/06/07 18:07:47]

unix_hacker var names

[ddorwin, 2013/06/10 22:53:01]

Done.

+  virtual void close();
+
+ private:
+  WebKit::WebCDMSession::Client* const client_;
+  WebKit::WebString session_id_;
+
+  DISALLOW_IMPLICIT_CONSTRUCTORS(RendererWebCDMSessionImpl);
+};
+
+RendererWebCDMSessionImpl::RendererWebCDMSessionImpl(
+    WebKit::WebCDMSession::Client* client)
+    : client_(client) {

[scherkus (not reviewing), 2013/06/07 18:07:47]

does session_id_ need to be init'd to anything in particular?

[ddorwin, 2013/06/10 22:53:01]

It will. I added a TODO to make this obvious.

+}
+
+RendererWebCDMSessionImpl::~RendererWebCDMSessionImpl() {
+}
+
+void RendererWebCDMSessionImpl::generateKeyRequest(
+    const WebKit::WebString& mimeType,

[scherkus (not reviewing), 2013/06/07 18:07:47]

unix_hacker var names

[ddorwin, 2013/06/10 22:53:01]

Done.

+    const unsigned char* initData, unsigned initDataLength) {
+

[scherkus (not reviewing), 2013/06/07 18:07:47]

remove line

[ddorwin, 2013/06/10 22:53:01]

Done.

+  // TODO(ddorwin): Call a real implementation and remove stub event triggers.
+  NOTIMPLEMENTED();
+  client_->keyMessage(NULL, 0, WebKit::WebURL());
+

[scherkus (not reviewing), 2013/06/07 18:07:47]

remove line

[ddorwin, 2013/06/10 22:53:01]

Done.

+}
+
+void RendererWebCDMSessionImpl::update(const unsigned char* key,
+                                       unsigned keyLength) {

[scherkus (not reviewing), 2013/06/07 18:07:47]

unix_hacker var names

[ddorwin, 2013/06/10 22:53:01]

Done.

+  DCHECK(key);
+
+  // TODO(ddorwin): Call a real implementation and remove stub event triggers.
+  NOTIMPLEMENTED();
+  // TODO(ddorwin): Remove when we have a real implementation that passes tests.
+  if (keyLength != 128 / 8) {
+    client_->keyError(WebKit::WebCDMSession::Client::MediaKeyErrorCodeUnknown,
+                      0);
+    return;
+  }
+  client_->keyAdded();
+}
+
+void RendererWebCDMSessionImpl::close() {
+  // TODO(ddorwin): Call a real implementation.
+  NOTIMPLEMENTED();
+}
+
+//------------------------------------------------------------------------------
+
+RendererWebCDMImpl* RendererWebCDMImpl::create(const string16& keySystem) {
+  // TODO(ddorwin): Verify we can create the internal objects & load CDM first.
+  return new RendererWebCDMImpl(keySystem);

[scherkus (not reviewing), 2013/06/07 18:07:47]

unix_hacker var names

[ddorwin, 2013/06/10 22:53:01]

Done.

+}
+
+RendererWebCDMImpl::RendererWebCDMImpl(const string16& keySystem) {

[scherkus (not reviewing), 2013/06/07 18:07:47]

unix_hacker var names

[ddorwin, 2013/06/10 22:53:01]

Done.

+}
+
+RendererWebCDMImpl::~RendererWebCDMImpl() {
+}
+
+WebKit::WebCDMSession* RendererWebCDMImpl::createSession(
+    WebKit::WebCDMSession::Client* client) {
+  return new RendererWebCDMSessionImpl(client);
+}
+
+}  // namespace content