Create a very simple TabContentsView (and not fully implemented yet) and add more supporting code...

content/shell/shell_browser_main.h

Index: content/shell/shell_browser_main.h
===================================================================
--- content/shell/shell_browser_main.h	(revision 100929)
+++ content/shell/shell_browser_main.h	(working copy)
@@ -6,4 +6,53 @@
 #define CONTENT_SHELL_SHELL_BROWSER_MAIN_H_
 #pragma once
 
+#include "base/memory/scoped_ptr.h"
+#include "content/browser/browser_main.h"
+
+class ResourceDispatcherHost;
+class TabContents;
+
+namespace base {
+class Thread;
+}
+
+namespace ui {
+class Clipboard;
+}
+
+namespace content {
+
+class ShellBrowserContext;
+
+class ShellBrowserMainParts : public BrowserMainParts {
+ public:
+  explicit ShellBrowserMainParts(const MainFunctionParams& parameters);
+  virtual ~ShellBrowserMainParts();
+
+  virtual void PreMainMessageLoopRun();
+
+  ResourceDispatcherHost* GetResourceDispatcherHost();
+  ui::Clipboard* GetClipboard();
+
+  base::Thread* io_thread() { return io_thread_.get(); }
+  base::Thread* file_thread() { return file_thread_.get(); }
+
+ private:
+  scoped_ptr<ShellBrowserContext> browser_context_;
+  scoped_ptr<TabContents> tab_contents_;
+
+  scoped_ptr<ResourceDispatcherHost> resource_dispatcher_host_;
+  scoped_ptr<ui::Clipboard> clipboard_;
+
+  scoped_ptr<base::Thread> io_thread_;
+  scoped_ptr<base::Thread> file_thread_;
+  scoped_ptr<base::Thread> db_thread_;
+  scoped_ptr<base::Thread> process_launcher_thread_;
+  scoped_ptr<base::Thread> cache_thread_;
+
+  DISALLOW_COPY_AND_ASSIGN(ShellBrowserMainParts);
+};
+
+}  // namespace content
+
 #endif  // CONTENT_SHELL_SHELL_BROWSER_MAIN_H_