Start renderer in ContentViewCoreImpl::EvaluateJavaScript.

content/browser/web_contents/web_contents_impl.h

 // Copyright (c) 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_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 135 matching lines @@
   // No interstitial page should already be attached.
   void AttachInterstitialPage(InterstitialPageImpl* interstitial_page);
 
   // Unsets the currently showing interstitial.
   void DetachInterstitialPage();
 
 #if defined(OS_ANDROID)
   JavaBridgeDispatcherHostManager* java_bridge_dispatcher_host_manager() const {
     return java_bridge_dispatcher_host_manager_.get();
   }
+
+  // In Android WebView, the RenderView needs created even there is no

[Charlie Reis, 2013/08/22 00:09:53]

Wording nits in the first sentence:

In Android WebView, the RenderView needs to be created even before the first
navigation.  This allows...

+  // navigation entry, this allows Android WebViews to use
+  // javascript: URLs that load into the DOMWindow before the first page
+  // load. This is not safe to do in any context that a web page could get a
+  // reference to the DOMWindow before the first page load.
+  bool CreateRenderViewForInitialEmptyDocument();
 #endif
 
   // Expose the render manager for testing.
   RenderViewHostManager* GetRenderManagerForTesting();
 
   // Returns guest browser plugin object, or NULL if this WebContents is not a
   // guest.
   BrowserPluginGuest* GetBrowserPluginGuest() const;
 
   // Sets a BrowserPluginGuest object for this WebContents. If this WebContents
@@ skipping 790 matching lines @@
   // Maps the ids of pending image downloads to their callbacks
   typedef std::map<int, ImageDownloadCallback> ImageDownloadMap;
   ImageDownloadMap image_download_map_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_