Navigation transitions: Block first response until after transitions have run.

content/browser/android/content_view_core_impl.h

 // Copyright 2012 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.
 
 #ifndef CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_
 #define CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_
 
 #include <vector>
 
 #include "base/android/jni_android.h"
@@ skipping 200 matching lines @@
 
   void SetAccessibilityEnabled(JNIEnv* env, jobject obj, bool enabled);
 
   void ExtractSmartClipData(JNIEnv* env,
                             jobject obj,
                             jint x,
                             jint y,
                             jint width,
                             jint height);
 
+  // Notifies the main frame that it can continue navigation (if it was deferred
+  // immediately at first response).
+  void ResumeResponseDeferredAtStart(JNIEnv* env, jobject obj);
+
   jint GetCurrentRenderProcessId(JNIEnv* env, jobject obj);
 
   // --------------------------------------------------------------------------
   // Public methods that call to Java via JNI
   // --------------------------------------------------------------------------
 
+  // This method is invoked when the request is deferred immediately after
+  // receiving response headers.
+  void DidDeferAfterResponseStarted();
+
+  // This method is invoked when a navigation transition is detected, to
+  // determine if the embedder intends to handle it.
+  bool WillHandleDeferAfterResponseStarted();
+
   void OnSmartClipDataExtracted(const base::string16& result);
 
   // Creates a popup menu with |items|.
   // |multiple| defines if it should support multi-select.
   // If not |multiple|, |selected_item| sets the initially selected item.
   // Otherwise, item's "checked" flag selects it.
   void ShowSelectPopupMenu(const gfx::Rect& bounds,
                            const std::vector<MenuItem>& items,
                            int selected_item,
                            bool multiple);
@@ skipping 136 matching lines @@
       java_bridge_dispatcher_host_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentViewCoreImpl);
 };
 
 bool RegisterContentViewCore(JNIEnv* env);
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_