Revert of Remove about:srcdoc url conversion.

content/browser/android/web_contents_observer_proxy.cc

 // Copyright 2015 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.
 
 #include "content/browser/android/web_contents_observer_proxy.h"
 
 #include <string>
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
@@ skipping 173 matching lines @@
 
 void WebContentsObserverProxy::DocumentAvailableInMainFrame() {
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jobject> obj(java_observer_);
   Java_WebContentsObserverProxy_documentAvailableInMainFrame(env, obj);
 }
 
 void WebContentsObserverProxy::DidStartProvisionalLoadForFrame(
     RenderFrameHost* render_frame_host,
     const GURL& validated_url,
-    bool is_error_page) {
+    bool is_error_page,
+    bool is_iframe_srcdoc) {
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jobject> obj(java_observer_);
   ScopedJavaLocalRef<jstring> jstring_url(
       ConvertUTF8ToJavaString(env, validated_url.spec()));
   // TODO(dcheng): Does Java really need the parent frame ID? It doesn't appear
   // to be used at all, and it just adds complexity here.
   Java_WebContentsObserverProxy_didStartProvisionalLoadForFrame(
       env, obj, render_frame_host->GetRoutingID(),
       render_frame_host->GetParent()
           ? render_frame_host->GetParent()->GetRoutingID()
           : -1,
-      !render_frame_host->GetParent(), jstring_url, is_error_page);
+      !render_frame_host->GetParent(), jstring_url, is_error_page,
+      is_iframe_srcdoc);
 }
 
 void WebContentsObserverProxy::DidCommitProvisionalLoadForFrame(
     RenderFrameHost* render_frame_host,
     const GURL& url,
     ui::PageTransition transition_type) {
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jobject> obj(java_observer_);
   ScopedJavaLocalRef<jstring> jstring_url(
       ConvertUTF8ToJavaString(env, url.spec()));
@@ skipping 124 matching lines @@
     // a base URL if there has been a loadUrl("javascript:...") after
     // loadDataWithBaseUrl.
     *url = base_url_of_last_started_data_url_.possibly_invalid_spec();
   }
 }
 
 bool RegisterWebContentsObserverProxy(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 }  // namespace content