Remove platform/drm files.

Source/platform/drm/ContentDecryptionModuleSession.h

Index: Source/platform/drm/ContentDecryptionModuleSession.h
diff --git a/Source/platform/drm/ContentDecryptionModuleSession.h b/Source/platform/drm/ContentDecryptionModuleSession.h
deleted file mode 100644
index 24285b3eb97898a827294ab52bc0053c9d2bb967..0000000000000000000000000000000000000000
--- a/Source/platform/drm/ContentDecryptionModuleSession.h
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- * Copyright (C) 2013 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef ContentDecryptionModuleSession_h
-#define ContentDecryptionModuleSession_h
-
-#include "platform/PlatformExport.h"
-#include "public/platform/WebContentDecryptionModuleSession.h"
-#include "wtf/Forward.h"
-#include "wtf/OwnPtr.h"
-#include "wtf/PassOwnPtr.h"
-#include "wtf/text/WTFString.h"
-
-namespace blink {
-class WebContentDecryptionModule;
-}
-
-namespace WebCore {
-
-class KURL;
-
-class PLATFORM_EXPORT ContentDecryptionModuleSessionClient {
-public:
-    enum MediaKeyErrorCode { UnknownError = 1, ClientError };
-    virtual void message(const unsigned char* message, size_t messageLength, const KURL& destinationURL) = 0;
-    virtual void ready() = 0;
-    virtual void close() = 0;
-    virtual void error(MediaKeyErrorCode, unsigned long systemCode) = 0;
-};
-
-class PLATFORM_EXPORT ContentDecryptionModuleSession : private blink::WebContentDecryptionModuleSession::Client {
-    WTF_MAKE_NONCOPYABLE(ContentDecryptionModuleSession);
-public:
-    static PassOwnPtr<ContentDecryptionModuleSession> create(ContentDecryptionModuleSessionClient*);
-
-    ContentDecryptionModuleSession(blink::WebContentDecryptionModule*, ContentDecryptionModuleSessionClient*);
-    virtual ~ContentDecryptionModuleSession();
-
-    String sessionId() const;
-    void initializeNewSession(const String& mimeType, const Uint8Array& initData);
-    void update(const Uint8Array& response);
-    void release();
-
-private:
-    // blink::WebContentDecryptionModuleSession::Client
-    virtual void message(const unsigned char* message, size_t messageLength, const blink::WebURL& destinationURL) OVERRIDE;
-    virtual void ready() OVERRIDE;
-    virtual void close() OVERRIDE;
-    virtual void error(MediaKeyErrorCode, unsigned long systemCode) OVERRIDE;
-
-    OwnPtr<blink::WebContentDecryptionModuleSession> m_session;
-
-    ContentDecryptionModuleSessionClient* m_client;
-};
-
-} // namespace WebCore
-
-#endif // ContentDecryptionModuleSession_h