Upgrading OKHTTP to v2.0

-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=71465711
diff --git a/core/src/main/java/com/google/net/stubby/http2/okhttp/Http2Request.java b/core/src/main/java/com/google/net/stubby/http2/okhttp/Http2Request.java
index a41ffd5..67cce9f 100644
--- a/core/src/main/java/com/google/net/stubby/http2/okhttp/Http2Request.java
+++ b/core/src/main/java/com/google/net/stubby/http2/okhttp/Http2Request.java
@@ -34,13 +34,7 @@
       for (Map.Entry<String, String> entry : headers.entrySet()) {
         requestHeaders.add(new Header(entry.getKey(), entry.getValue()));
       }
-      frameWriter.synStream(false,
-          false,
-          getId(),
-          0,
-          0,
-          0,
-          requestHeaders);
+      frameWriter.synStream(false, false, getId(), 0, requestHeaders);
     } catch (IOException ioe) {
       close(new Status(Transport.Code.UNKNOWN, ioe));
     }
diff --git a/core/src/main/java/com/google/net/stubby/http2/okhttp/Http2Response.java b/core/src/main/java/com/google/net/stubby/http2/okhttp/Http2Response.java
index 1ef5256..f112764 100644
--- a/core/src/main/java/com/google/net/stubby/http2/okhttp/Http2Response.java
+++ b/core/src/main/java/com/google/net/stubby/http2/okhttp/Http2Response.java
@@ -32,7 +32,7 @@
   private Http2Response(int id, FrameWriter frameWriter, Framer framer) {
     super(id, frameWriter, framer);
     try {
-      frameWriter.synStream(false, false, getId(), 0, 0, 0, Headers.createResponseHeaders());
+      frameWriter.synStream(false, false, getId(), 0, Headers.createResponseHeaders());
     } catch (IOException ioe) {
       close(new Status(Transport.Code.INTERNAL, ioe));
     }
diff --git a/core/src/main/java/com/google/net/stubby/http2/okhttp/OkHttpSession.java b/core/src/main/java/com/google/net/stubby/http2/okhttp/OkHttpSession.java
index 0a02b67..8fd7c2e 100644
--- a/core/src/main/java/com/google/net/stubby/http2/okhttp/OkHttpSession.java
+++ b/core/src/main/java/com/google/net/stubby/http2/okhttp/OkHttpSession.java
@@ -21,7 +21,7 @@
 import com.squareup.okhttp.internal.spdy.FrameWriter;
 import com.squareup.okhttp.internal.spdy.Header;
 import com.squareup.okhttp.internal.spdy.HeadersMode;
-import com.squareup.okhttp.internal.spdy.Http20Draft10;
+import com.squareup.okhttp.internal.spdy.Http20Draft12;
 import com.squareup.okhttp.internal.spdy.Settings;
 import com.squareup.okhttp.internal.spdy.Variant;
 
@@ -94,7 +94,7 @@
    */
   private OkHttpSession(Socket socket, RequestRegistry requestRegistry,
       Executor executor) throws IOException {
-    Variant variant = new Http20Draft10();
+    Variant variant = new Http20Draft12();
     // TODO(user): use Okio.buffer(Socket)
     countingInputStream = new CountingInputStream(socket.getInputStream());
     countingOutputStream = new CountingOutputStream(socket.getOutputStream());
@@ -115,7 +115,7 @@
    */
   private OkHttpSession(Socket socket, Session server,
       RequestRegistry requestRegistry, Executor executor) throws IOException {
-    Variant variant = new Http20Draft10();
+    Variant variant = new Http20Draft12();
     // TODO(user): use Okio.buffer(Socket)
     countingInputStream = new CountingInputStream(socket.getInputStream());
     countingOutputStream = new CountingOutputStream(socket.getOutputStream());
@@ -252,7 +252,6 @@
         boolean inFinished,
         int streamId,
         int associatedStreamId,
-        int priority,
         List<Header> headers,
         HeadersMode headersMode) {
       Operation op = getOperation(streamId);
@@ -328,7 +327,18 @@
     }
 
     @Override
-    public void priority(int streamId, int priority) {
+    public void alternateService(int streamId,
+        String origin,
+        ByteString protocol,
+        String host,
+        int port,
+        long maxAge) {
+      // TODO(user): Is this required?
+
+    }
+
+    @Override
+    public void priority(int streamId, int streamDependency, int weight, boolean exclusive) {
       // noop
     }
   }
diff --git a/core/src/main/java/com/google/net/stubby/newtransport/okhttp/AsyncFrameWriter.java b/core/src/main/java/com/google/net/stubby/newtransport/okhttp/AsyncFrameWriter.java
index 63226c3..d5ac86c 100644
--- a/core/src/main/java/com/google/net/stubby/newtransport/okhttp/AsyncFrameWriter.java
+++ b/core/src/main/java/com/google/net/stubby/newtransport/okhttp/AsyncFrameWriter.java
@@ -28,11 +28,11 @@
   }
 
   @Override
-  public void connectionHeader() {
+  public void connectionPreface() {
     executor.execute(new WriteRunnable() {
       @Override
       public void doRun() throws IOException {
-        frameWriter.connectionHeader();
+        frameWriter.connectionPreface();
       }
     });
   }
@@ -70,13 +70,11 @@
 
   @Override
   public void synStream(final boolean outFinished, final boolean inFinished, final int streamId,
-      final int associatedStreamId, final int priority, final int slot,
-      final List<Header> headerBlock) {
+      final int associatedStreamId, final List<Header> headerBlock) {
     executor.execute(new WriteRunnable() {
       @Override
       public void doRun() throws IOException {
-        frameWriter.synStream(outFinished, inFinished, streamId, associatedStreamId, priority,
-          slot, headerBlock);
+        frameWriter.synStream(outFinished, inFinished, streamId, associatedStreamId, headerBlock);
       }
     });
   }
diff --git a/core/src/main/java/com/google/net/stubby/newtransport/okhttp/OkHttpClientTransport.java b/core/src/main/java/com/google/net/stubby/newtransport/okhttp/OkHttpClientTransport.java
index b60897b..fc974e0 100644
--- a/core/src/main/java/com/google/net/stubby/newtransport/okhttp/OkHttpClientTransport.java
+++ b/core/src/main/java/com/google/net/stubby/newtransport/okhttp/OkHttpClientTransport.java
@@ -20,7 +20,7 @@
 import com.squareup.okhttp.internal.spdy.FrameReader;
 import com.squareup.okhttp.internal.spdy.Header;
 import com.squareup.okhttp.internal.spdy.HeadersMode;
-import com.squareup.okhttp.internal.spdy.Http20Draft10;
+import com.squareup.okhttp.internal.spdy.Http20Draft12;
 import com.squareup.okhttp.internal.spdy.Settings;
 import com.squareup.okhttp.internal.spdy.Variant;
 
@@ -107,7 +107,7 @@
     } catch (IOException e) {
       throw new RuntimeException(e);
     }
-    Variant variant = new Http20Draft10();
+    Variant variant = new Http20Draft12();
     frameReader = variant.newReader(source, true);
     frameWriter = new AsyncFrameWriter(variant.newWriter(sink, true), this, executor);
 
@@ -222,8 +222,7 @@
         boolean inFinished,
         int streamId,
         int associatedStreamId,
-        int priority,
-        List<Header> headers,
+        List<Header> headerBlock,
         HeadersMode headersMode) {
       // TODO(user): handle received headers.
     }
@@ -273,10 +272,16 @@
     }
 
     @Override
-    public void priority(int streamId, int priority) {
+    public void priority(int streamId, int streamDependency, int weight, boolean exclusive) {
       // Ignore priority change.
       // TODO(user): log
     }
+
+    @Override
+    public void alternateService(int streamId, String origin, ByteString protocol, String host,
+        int port, long maxAge) {
+      // TODO(user): Deal with alternateService propagation
+    }
   }
 
   /**
@@ -294,7 +299,7 @@
         streamId = nextStreamId;
         nextStreamId += 2;
         streams.put(streamId, this);
-        frameWriter.synStream(false, false, streamId, 0, 0, 0,
+        frameWriter.synStream(false, false, streamId, 0,
             Headers.createRequestHeaders(method.getName()));
       }
       deframer = new InputStreamDeframer(inboundMessageHandler());