Implement the default tab opening behavior. Fix some linux build issues by adding missing includes.

chrome/browser/views/tabs/tab_overview_controller.cc

 // Copyright (c) 2009 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 "chrome/browser/views/tabs/tab_overview_controller.h"
 
 #include "chrome/browser/browser.h"
 #include "chrome/browser/gtk/browser_window_gtk.h"
+#include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/browser/views/tabs/tab_overview_cell.h"
 #include "chrome/browser/views/tabs/tab_overview_container.h"
 #include "chrome/browser/views/tabs/tab_overview_grid.h"
 #include "chrome/browser/window_sizer.h"
 #include "views/fill_layout.h"
 #include "views/widget/root_view.h"
 #include "views/widget/widget_gtk.h"
 
 static int kMonitorPadding = 20;
 static int kInteriorPadding = 20;
@@ skipping 178 matching lines @@
   host_->SetBounds(gfx::Rect(x, y, pref.width(), pref.height()));
 
   container_->UpdateWidgetShape(pref.width(), pref.height());
   if (grid()->GetChildViewCount() > 0) {
     if (shown_)
       host_->Show();
   } else {
     host_->Hide();
   }
 }