Update //third_party/protobuf to version 3.

third_party/protobuf/ruby/src/main/java/com/google/protobuf/jruby/RubyProtobuf.java

Index: third_party/protobuf/ruby/src/main/java/com/google/protobuf/jruby/RubyProtobuf.java
diff --git a/third_party/WebKit/Source/core/workers/DedicatedWorkerThread.h b/third_party/protobuf/ruby/src/main/java/com/google/protobuf/jruby/RubyProtobuf.java
similarity index 53%
copy from third_party/WebKit/Source/core/workers/DedicatedWorkerThread.h
copy to third_party/protobuf/ruby/src/main/java/com/google/protobuf/jruby/RubyProtobuf.java
index a6fa87d7ef65d50525b5d0a8c6a2253477037dbb..2cf210d26f58548e03805eef04114c5c337e85d6 100644
--- a/third_party/WebKit/Source/core/workers/DedicatedWorkerThread.h
+++ b/third_party/protobuf/ruby/src/main/java/com/google/protobuf/jruby/RubyProtobuf.java
@@ -1,5 +1,7 @@
 /*
- * Copyright (C) 2009 Google Inc. All rights reserved.
+ * Protocol Buffers - Google's data interchange format
+ * Copyright 2014 Google Inc.  All rights reserved.
+ * https://developers.google.com/protocol-buffers/
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
@@ -27,36 +29,40 @@
  * (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 DedicatedWorkerThread_h
-#define DedicatedWorkerThread_h
 
-#include "core/workers/WorkerThread.h"
+package com.google.protobuf.jruby;
 
-namespace blink {
+import org.jruby.Ruby;
+import org.jruby.RubyModule;
+import org.jruby.anno.JRubyMethod;
+import org.jruby.anno.JRubyModule;
+import org.jruby.runtime.ThreadContext;
+import org.jruby.runtime.builtin.IRubyObject;
 
-class InProcessWorkerObjectProxy;
-class WorkerThreadStartupData;
+@JRubyModule(name = "Protobuf")
+public class RubyProtobuf {
 
-class DedicatedWorkerThread final : public WorkerThread {
-public:
-    static PassOwnPtr<DedicatedWorkerThread> create(PassRefPtr<WorkerLoaderProxy>, InProcessWorkerObjectProxy&, double timeOrigin);
-    ~DedicatedWorkerThread() override;
+    public static void createProtobuf(Ruby runtime) {
+        RubyModule mGoogle = runtime.getModule("Google");
+        RubyModule mProtobuf = mGoogle.defineModuleUnder("Protobuf");
+        mProtobuf.defineAnnotatedMethods(RubyProtobuf.class);
+    }
 
-    WorkerBackingThread& workerBackingThread() override { return *m_workerBackingThread; }
-    InProcessWorkerObjectProxy& workerObjectProxy() const { return m_workerObjectProxy; }
-
-protected:
-    WorkerGlobalScope* createWorkerGlobalScope(PassOwnPtr<WorkerThreadStartupData>) override;
-    void postInitialize() override;
-
-private:
-    DedicatedWorkerThread(PassRefPtr<WorkerLoaderProxy>, InProcessWorkerObjectProxy&, double timeOrigin);
-
-    OwnPtr<WorkerBackingThread> m_workerBackingThread;
-    InProcessWorkerObjectProxy& m_workerObjectProxy;
-    double m_timeOrigin;
-};
-
-} // namespace blink
-
-#endif // DedicatedWorkerThread_h
+    /*
+     * call-seq:
+     *     Google::Protobuf.deep_copy(obj) => copy_of_obj
+     *
+     * Performs a deep copy of either a RepeatedField instance or a message object,
+     * recursively copying its members.
+     */
+    @JRubyMethod(name = "deep_copy", meta = true)
+    public static IRubyObject deepCopy(ThreadContext context, IRubyObject self, IRubyObject message) {
+        if (message instanceof RubyMessage) {
+            return ((RubyMessage) message).deepCopy(context);
+        } else if (message instanceof RubyRepeatedField) {
+            return ((RubyRepeatedField) message).deepCopy(context);
+        } else {
+            return ((RubyMap) message).deepCopy(context);
+        }
+    }
+}