Move PostMessageToFrame to WebContentsAndroid

content/public/android/java/src/org/chromium/content_public/browser/WebContents.java

Index: content/public/android/java/src/org/chromium/content_public/browser/WebContents.java
diff --git a/content/public/android/java/src/org/chromium/content_public/browser/WebContents.java b/content/public/android/java/src/org/chromium/content_public/browser/WebContents.java
index a76a5a027f00a3eef9876ab7f5890d13af62f655..e0cf8642879933b58f0be33430e7e4ef77aeb0e5 100644
--- a/content/public/android/java/src/org/chromium/content_public/browser/WebContents.java
+++ b/content/public/android/java/src/org/chromium/content_public/browser/WebContents.java
@@ -163,4 +163,16 @@ public interface WebContents {
      */
     public void evaluateJavaScript(String script, JavaScriptCallback callback);
 
+    /**
+     * Post a message to a frame.
+     * TODO(sgurun) also add support for transferring a message channel port.
+     *
+     * @param frameName The name of the frame. If the name is null the message is posted
+     *                  to the main frame.
+     * @param message   The message
+     * @param sourceOrigin  The source origin
+     * @param targetOrigin  The target origin
+     */
+    public void postMessageToFrame(String frameName, String message,
+            String sourceOrigin, String targetOrigin);
 }