Revert 176773

content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java

Index: content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
===================================================================
--- content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java	(revision 176919)
+++ content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java	(working copy)
@@ -1097,26 +1097,18 @@
         }
     }
 
-    public interface JavaScriptCallback {
-        void handleJavaScriptResult(String jsonResult);
-    }
-
     /**
-     * Injects the passed Javascript code in the current page and evaluates it.
-     * If a result is required, pass in a callback.
-     * Used in automation tests.
+     * Injects the passed JavaScript code in the current page and evaluates it.
+     * Once evaluated, an asynchronous call to
+     * ContentViewClient.onJavaScriptEvaluationResult is made. Used in automation
+     * tests.
      *
-     * @param script The Javascript to execute.
-     * @param message The callback to be fired off when a result is ready. The script's
-     *                result will be json encoded and passed as the parameter, and the call
-     *                will be made on the main thread.
-     *                If no result is required, pass null.
+     * @return an id that is passed along in the asynchronous onJavaScriptEvaluationResult callback
      * @throws IllegalStateException If the ContentView has been destroyed.
      */
-    public void evaluateJavaScript(
-            String script, JavaScriptCallback callback) throws IllegalStateException {
+    public int evaluateJavaScript(String script) throws IllegalStateException {
         checkIsAlive();
-        nativeEvaluateJavaScript(mNativeContentViewCore, script, callback);
+        return nativeEvaluateJavaScript(script);
     }
 
     /**
@@ -2051,9 +2043,8 @@
 
     @SuppressWarnings("unused")
     @CalledByNative
-    private static void onEvaluateJavaScriptResult(
-            String jsonResult, JavaScriptCallback callback) {
-        callback.handleJavaScriptResult(jsonResult);
+    private void onEvaluateJavaScriptResult(int id, String jsonResult) {
+        getContentViewClient().onEvaluateJavaScriptResult(id, jsonResult);
     }
 
     @SuppressWarnings("unused")
@@ -2564,8 +2555,7 @@
 
     private native void nativeClearHistory(int nativeContentViewCoreImpl);
 
-    private native void nativeEvaluateJavaScript(int nativeContentViewCoreImpl,
-            String script, JavaScriptCallback callback);
+    private native int nativeEvaluateJavaScript(String script);
 
     private native int nativeGetNativeImeAdapter(int nativeContentViewCoreImpl);