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/animation/AnimationClock.cpp b/third_party/protobuf/ruby/src/main/java/com/google/protobuf/jruby/RubyProtobuf.java
similarity index 52%
copy from third_party/WebKit/Source/core/animation/AnimationClock.cpp
copy to third_party/protobuf/ruby/src/main/java/com/google/protobuf/jruby/RubyProtobuf.java
index 8350e211e7d5e5c4f7aad8cc6b6b2675dce51a7c..2cf210d26f58548e03805eef04114c5c337e85d6 100644
--- a/third_party/WebKit/Source/core/animation/AnimationClock.cpp
+++ b/third_party/protobuf/ruby/src/main/java/com/google/protobuf/jruby/RubyProtobuf.java
@@ -1,5 +1,7 @@
 /*
- * Copyright (c) 2014, 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
@@ -28,54 +30,39 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include "core/animation/AnimationClock.h"
+package com.google.protobuf.jruby;
 
-#include "wtf/CurrentTime.h"
-#include <math.h>
+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;
 
-namespace {
+@JRubyModule(name = "Protobuf")
+public class RubyProtobuf {
 
-// FIXME: This is an approximation of time between frames, used when
-// ticking the animation clock outside of animation frame callbacks.
-// Ideally this would be generated by the compositor.
-const double approximateFrameTime = 1 / 60.0;
-
-}
-
-namespace blink {
-
-unsigned AnimationClock::s_currentTask = 0;
-
-void AnimationClock::updateTime(double time)
-{
-    if (time > m_time)
-        m_time = time;
-    m_currentTask = s_currentTask;
-}
+    public static void createProtobuf(Ruby runtime) {
+        RubyModule mGoogle = runtime.getModule("Google");
+        RubyModule mProtobuf = mGoogle.defineModuleUnder("Protobuf");
+        mProtobuf.defineAnnotatedMethods(RubyProtobuf.class);
+    }
 
-double AnimationClock::currentTime()
-{
-    if (m_currentTask != s_currentTask) {
-        const double currentTime = m_monotonicallyIncreasingTime();
-        if (m_time < currentTime) {
-            // Advance to the first estimated frame after the current time.
-            const double frameShift = fmod(currentTime - m_time, approximateFrameTime);
-            const double newTime = currentTime + (approximateFrameTime - frameShift);
-            ASSERT(newTime >= currentTime);
-            ASSERT(newTime <= currentTime + approximateFrameTime);
-            updateTime(newTime);
+    /*
+     * 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 {
-            m_currentTask = s_currentTask;
+            return ((RubyMap) message).deepCopy(context);
         }
     }
-    return m_time;
 }
-
-void AnimationClock::resetTimeForTesting(double time)
-{
-    m_time = time;
-    m_currentTask = 0;
-    s_currentTask = 0;
-}
-
-} // namespace blink