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

chrome/android/java/src/org/chromium/chrome/browser/tab/TabWebContentsDelegateAndroid.java

Index: chrome/android/java/src/org/chromium/chrome/browser/tab/TabWebContentsDelegateAndroid.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/tab/TabWebContentsDelegateAndroid.java b/chrome/android/java/src/org/chromium/chrome/browser/tab/TabWebContentsDelegateAndroid.java
index cc90675c5b81b18598f1fc35432e42d08be8e39e..d485bfd23154e30ec8ab72bf34eea5e493e20ef7 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/tab/TabWebContentsDelegateAndroid.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/tab/TabWebContentsDelegateAndroid.java
@@ -40,6 +40,7 @@ import org.chromium.chrome.browser.util.FeatureUtilities;
 import org.chromium.components.web_contents_delegate_android.WebContentsDelegateAndroid;
 import org.chromium.content_public.browser.InvalidateTypes;
 import org.chromium.content_public.browser.WebContents;
+import org.chromium.content_public.common.ResourceRequestBody;
 import org.chromium.ui.WindowOpenDisposition;
 
 /**
@@ -290,8 +291,8 @@ public class TabWebContentsDelegateAndroid extends WebContentsDelegateAndroid {
     }
 
     @Override
-    public void openNewTab(String url, String extraHeaders, byte[] postData, int disposition,
-            boolean isRendererInitiated) {
+    public void openNewTab(String url, String extraHeaders, ResourceRequestBody postData,
+            int disposition, boolean isRendererInitiated) {
         mTab.openNewTab(url, extraHeaders, postData, disposition, true, isRendererInitiated);
     }