Rename TabContents::controller() to GetController and put it into the WebContents interface.

chrome/browser/ui/views/constrained_html_delegate_gtk.cc

Index: chrome/browser/ui/views/constrained_html_delegate_gtk.cc
===================================================================
--- chrome/browser/ui/views/constrained_html_delegate_gtk.cc	(revision 115228)
+++ chrome/browser/ui/views/constrained_html_delegate_gtk.cc	(working copy)
@@ -103,10 +103,10 @@
   // Set |this| as a property so the ConstrainedHtmlUI can retrieve it.
   ConstrainedHtmlUI::GetPropertyAccessor().SetProperty(
       tab_contents->GetPropertyBag(), this);
-  tab_contents->controller().LoadURL(delegate->GetDialogContentURL(),
-                                     content::Referrer(),
-                                     content::PAGE_TRANSITION_START_PAGE,
-                                     std::string());
+  tab_contents->GetController().LoadURL(delegate->GetDialogContentURL(),
+                                        content::Referrer(),
+                                        content::PAGE_TRANSITION_START_PAGE,
+                                        std::string());
 
   views::Widget::InitParams params(views::Widget::InitParams::TYPE_CONTROL);
   params.native_widget = this;