Remove BrowserList::GetLastActive usage from WebUI pages.

chrome/browser/ui/webui/certificate_viewer_webui.h

Index: chrome/browser/ui/webui/certificate_viewer_webui.h
===================================================================
--- chrome/browser/ui/webui/certificate_viewer_webui.h	(revision 142088)
+++ chrome/browser/ui/webui/certificate_viewer_webui.h	(working copy)
@@ -17,15 +17,14 @@
 #include "ui/gfx/native_widget_types.h"
 #include "ui/web_dialogs/web_dialog_delegate.h"
 
+namespace content {
+class WebContents;
+}
+
 namespace ui {
 class WebDialogObserver;
 }
 
-// Displays the native or WebUI certificate viewer dialog for the given
-// certificate.
-void ShowCertificateViewer(gfx::NativeWindow parent,
-                           net::X509Certificate*);
-
 // Dialog for displaying detailed certificate information. This is used in linux
 // and chromeos builds to display detailed information in a floating dialog when
 // the user clicks on "Certificate Information" from the lock icon of a web site
@@ -39,7 +38,7 @@
   virtual ~CertificateViewerDialog();
 
   // Show the dialog using the given parent window.
-  void Show(gfx::NativeWindow parent);
+  void Show(content::WebContents* web_contents, gfx::NativeWindow parent);
 
   // Add WebDialogObserver for this dialog.
   void AddObserver(ui::WebDialogObserver* observer);