Re-factor location bar/toolbar code to get rid of the browser dependency.

chrome/browser/command_updater.cc

Index: chrome/browser/command_updater.cc
diff --git a/chrome/browser/command_updater.cc b/chrome/browser/command_updater.cc
index 4a1b0dbc781961ad6565ffe41aa9a31434eca89c..6b9cfa61a93d5a4d96c888a27925f3132b43bd85 100644
--- a/chrome/browser/command_updater.cc
+++ b/chrome/browser/command_updater.cc
@@ -41,8 +41,14 @@ bool CommandUpdater::SupportsCommand(int id) const {
 }
 
 void CommandUpdater::ExecuteCommand(int id) {
+  ExecuteCommandWithDisposition(id, CURRENT_TAB);
+}
+
+void CommandUpdater::ExecuteCommandWithDisposition(
+    int id,
+    WindowOpenDisposition disposition) {
   if (IsCommandEnabled(id))
-    delegate_->ExecuteCommand(id);
+    delegate_->ExecuteCommandWithDisposition(id, disposition);
 }
 
 CommandUpdater::CommandObserver::~CommandObserver() {