[Android WebView] Synthesize a fake page loading event on page source modification

content/public/android/java/src/org/chromium/content/browser/webcontents/WebContentsImpl.java

Index: content/public/android/java/src/org/chromium/content/browser/webcontents/WebContentsImpl.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/webcontents/WebContentsImpl.java b/content/public/android/java/src/org/chromium/content/browser/webcontents/WebContentsImpl.java
index d6cb714f86af849bfea8bf5593f41e69eedc11f4..9cbfaf03101d186fa93b72419ba6d84c2704d4e1 100644
--- a/content/public/android/java/src/org/chromium/content/browser/webcontents/WebContentsImpl.java
+++ b/content/public/android/java/src/org/chromium/content/browser/webcontents/WebContentsImpl.java
@@ -296,6 +296,11 @@ import org.chromium.content_public.browser.WebContents;
         nativeAddMessageToDevToolsConsole(mNativeWebContentsAndroid, level, message);
     }
 
+    @Override
+    public boolean hasPageScriptAccessedInitialDocument() {
+        return nativeHasPageScriptAccessedInitialDocument(mNativeWebContentsAndroid);
+    }
+
     @CalledByNative
     private static void onEvaluateJavaScriptResult(
             String jsonResult, JavaScriptCallback callback) {
@@ -347,4 +352,6 @@ import org.chromium.content_public.browser.WebContents;
             String script, JavaScriptCallback callback);
     private native void nativeAddMessageToDevToolsConsole(
             long nativeWebContentsAndroid, int level, String message);
+    private native boolean nativeHasPageScriptAccessedInitialDocument(
+            long nativeWebContentsAndroid);
 }