[Experimental] Fool around with exposing extension bindings via blink

chrome/browser/extensions/chrome_extension_web_contents_observer.cc

Index: chrome/browser/extensions/chrome_extension_web_contents_observer.cc
diff --git a/chrome/browser/extensions/chrome_extension_web_contents_observer.cc b/chrome/browser/extensions/chrome_extension_web_contents_observer.cc
index 466ac326d35ee82fd0f5ec2989e7c2ffbfaadd90..b2f95b86e5cab86d2a45ce5919330c5e1ac83fdc 100644
--- a/chrome/browser/extensions/chrome_extension_web_contents_observer.cc
+++ b/chrome/browser/extensions/chrome_extension_web_contents_observer.cc
@@ -7,6 +7,7 @@
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
 #include "chrome/browser/browser_process.h"
+#include "chrome/browser/extensions/api/developer_private/developer_private_mojo.h"
 #include "chrome/browser/extensions/error_console/error_console.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/window_controller.h"
@@ -21,6 +22,7 @@
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/common/content_switches.h"
+#include "content/public/common/service_registry.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/common/constants.h"
@@ -129,6 +131,9 @@ void ChromeExtensionWebContentsObserver::OnDetailedConsoleMessageAdded(
 
 void ChromeExtensionWebContentsObserver::InitializeRenderFrame(
     content::RenderFrameHost* render_frame_host) {
+  render_frame_host->GetServiceRegistry()->AddService(
+      base::Bind(&DeveloperPrivateMojo::Create, browser_context()));
+
   ExtensionWebContentsObserver::InitializeRenderFrame(render_frame_host);
   WindowController* controller = dispatcher()->GetExtensionWindowController();
   if (controller) {