Part 1 of merging Extensions and DOMUI

chrome/browser/extensions/extension_dom_ui.cc

+#include "chrome/browser/extensions/extension_dom_ui.h"
+
+#include "chrome/browser/browser.h"
+#include "chrome/browser/tab_contents/tab_contents.h"
+#include "chrome/common/bindings_policy.h"
+
+ExtensionDOMUI::ExtensionDOMUI(TabContents* tab_contents)
+    : DOMUI(tab_contents) {
+  // TODO(aa): It would be cool to show the extension's icon in here.
+  hide_favicon_ = true;
+  should_hide_url_ = true;
+  bindings_ = BindingsPolicy::EXTENSION;
+}
+
+void ExtensionDOMUI::RenderViewCreated(RenderViewHost* render_view_host) {
+  extension_function_dispatcher_.reset(
+      new ExtensionFunctionDispatcher(render_view_host, this,
+                                      tab_contents()->GetURL()));
+}
+
+void ExtensionDOMUI::ProcessDOMUIMessage(const std::string& message,
+                                         const std::string& content,
+                                         int request_id,
+                                         bool has_callback) {
+  extension_function_dispatcher_->HandleRequest(message, content, request_id,
+                                                has_callback);
+}
+
+Browser* ExtensionDOMUI::GetBrowser() {
+  return static_cast<Browser*>(tab_contents()->delegate());
+}