Make GTK and Aura parts orthogonal to OS parts

content/public/browser/content_browser_client.h

 // Copyright (c) 2011 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_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 #define CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 #pragma once
 
 #include <string>
 
@@ skipping 49 matching lines @@
 class SpeechInputManager;
 }
 
 namespace ui {
 class Clipboard;
 }
 
 namespace content {
 
 class BrowserContext;
-class BrowserMainParts;
 class ResourceContext;
 class WebUIFactory;
 
 // Embedder API (or SPI) for participating in browser logic, to be implemented
 // by the client of the content browser. See ChromeContentBrowserClient for the
 // principal implementation. The methods are assumed to be called on the UI
 // thread unless otherwise specified. Use this "escape hatch" sparingly, to
 // avoid the embedder interface ballooning and becoming very specific to Chrome.
 // (Often, the call out to the client can happen in a different part of the code
 // that either already has a hook out to the embedder, or calls out to one of
 // the observer interfaces.)
 class ContentBrowserClient {
  public:
   virtual ~ContentBrowserClient() {}
 
-  // Allows the embedder to return a customed BrowserMainParts implementation
-  // for the browser staratup code. Can return NULL, in which case the default
-  // is used.
-  virtual BrowserMainParts* CreateBrowserMainParts(
-      const MainFunctionParams& parameters) = 0;
+  // Allows the embedder to set any number of custom BrowserMainParts
+  // implementations for the browser startup code. See comments in
+  // browser_main_parts.h.
+  virtual void CreateBrowserMainParts(
+      const MainFunctionParams& parameters,
+      std::vector<BrowserMainParts*>* parts_list) = 0;
 
   // Platform-specific creator. Use this to construct new RenderWidgetHostViews
   // rather than using RenderWidgetHostViewWin & friends.
   //
   // This function must NOT size it, because the RenderView in the renderer
   // wouldn't have been created yet. The widget would set its "waiting for
   // resize ack" flag, and the ack would never come becasue no RenderView
   // received it.
   //
   // The RenderWidgetHost must already be created (because we can't know if it's
@@ skipping 241 matching lines @@
   // This is called on a worker thread.
   virtual
       crypto::CryptoModuleBlockingPasswordDelegate* GetCryptoPasswordDelegate(
           const GURL& url) = 0;
 #endif
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_