Add chrome_split_dll gyp variable, and duplicate chrome_main_dll target (reland)

content/public/app/content_main_delegate.cc

 // 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.
 
 #include "content/public/app/content_main_delegate.h"
 
 #include "content/public/browser/content_browser_client.h"
 
 #if !defined(OS_IOS)
 #include "content/public/plugin/content_plugin_client.h"
@@ skipping 43 matching lines @@
 
 ContentPluginClient* ContentMainDelegate::CreateContentPluginClient() {
 #if defined(OS_IOS)
   return NULL;
 #else
   return new ContentPluginClient();
 #endif
 }
 
 ContentRendererClient* ContentMainDelegate::CreateContentRendererClient() {
-#if defined(OS_IOS)
+  // TODO(scottmg): http://crbug.com/237249 Need split for chrome_child.dll.
+#if defined(OS_IOS) || defined(CHROME_SPLIT_DLL)
   return NULL;
 #else
   return new ContentRendererClient();
 #endif
 }
 
 ContentUtilityClient* ContentMainDelegate::CreateContentUtilityClient() {
-#if defined(OS_IOS)
+  // TODO(scottmg): http://crbug.com/237249 Need split for chrome_child.dll.
+#if defined(OS_IOS) || defined(CHROME_SPLIT_DLL)
   return NULL;
 #else
   return new ContentUtilityClient();
 #endif
 }
 
 }  // namespace content