Using ResourceRequestBody as the type of HTTP body outside of //content.

content/public/android/java/src/org/chromium/content_public/common/ResourceRequestBody.java

Index: content/public/android/java/src/org/chromium/content_public/common/ResourceRequestBody.java
diff --git a/content/public/android/java/src/org/chromium/content_public/common/ResourceRequestBody.java b/content/public/android/java/src/org/chromium/content_public/common/ResourceRequestBody.java
new file mode 100644
index 0000000000000000000000000000000000000000..f732cdf39e4e66935684584c710fa4d0976c2084
--- /dev/null
+++ b/content/public/android/java/src/org/chromium/content_public/common/ResourceRequestBody.java
@@ -0,0 +1,69 @@
+// Copyright 2016 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.
+
+package org.chromium.content_public.common;
+
+import org.chromium.base.annotations.CalledByNative;
+import org.chromium.base.annotations.JNINamespace;
+
+/**
+ * Wrapper around the native content::ResourceRequestBody.
+ */
+@JNINamespace("content")
+public final class ResourceRequestBody {
+    /**
+     * Result of EncodeResourceRequestBody call from page_state_serialization.h.
+     *
+     * Note that this is *not* the content of HTTP body (i.e. format of the
+     * value of mSerializedFormOfNativeResourceRequestBody is opaque and
+     * different from the value passed as an argument of
+     * ResourceRequestBody.createFromBytes method below).
+     */
+    private byte[] mEncodedNativeForm;
+
+    // ResourceRequestBody Java objects can only be constructed by
+    // - ResourceRequestBody::createFromBytes(byte[])
+    //   (public - callable from other Java code)
+    // - ResourceRequestBody::createFromEncodedNativeForm(byte[])
+    //   (private - called only from native code)
+    private ResourceRequestBody(byte[] encodedNativeForm) {
+        mEncodedNativeForm = encodedNativeForm;
+    }
+
+    /**
+     * Used by native code to construct ResourceRequestBody.
+     *
+     * @param encodedNativeForm Result of calling EncodeResourceRequestBody.
+     */
+    @CalledByNative
+    private static ResourceRequestBody createFromEncodedNativeForm(byte[] encodedNativeForm) {
+        return new ResourceRequestBody(encodedNativeForm);
+    }
+
+    @CalledByNative
+    private byte[] getEncodedNativeForm() {
+        return mEncodedNativeForm;
+    }
+
+    /**
+     * Creates an instance representing HTTP body where the payload
+     * is a copy of the specified byte array.
+     *
+     * @param body the HTTP body
+     */
+    public static ResourceRequestBody createFromBytes(byte[] httpBody) {
+        byte[] encodedNativeForm = nativeCreateResourceRequestBodyFromBytes(httpBody);
+        return createFromEncodedNativeForm(encodedNativeForm);
+    }
+
+    /**
+     * Equivalent of the native content::ResourceRequestBody::CreateFromBytes.
+     *
+     * @param body the HTTP body
+     *
+     * @return result of a call to EncodeResourceRequestBody on
+     * ResourceRequestBody created from |httpBody|.
+     */
+    private static native byte[] nativeCreateResourceRequestBodyFromBytes(byte[] httpBody);
+}