Move Mus into chrome's process when running with --mus.

chrome/browser/browser_process_platform_part_base.h

Index: chrome/browser/browser_process_platform_part_base.h
diff --git a/chrome/browser/browser_process_platform_part_base.h b/chrome/browser/browser_process_platform_part_base.h
index af9d60c0683554e678fa9bc5e7007241043ed272..d8becac696ae8bfd975c7f6115f3c58dad57f987 100644
--- a/chrome/browser/browser_process_platform_part_base.h
+++ b/chrome/browser/browser_process_platform_part_base.h
@@ -8,6 +8,7 @@
 #include <memory>
 
 #include "base/macros.h"
+#include "content/public/browser/content_browser_client.h"
 
 namespace base {
 class CommandLine;
@@ -41,6 +42,10 @@ class BrowserProcessPlatformPartBase {
   virtual std::unique_ptr<policy::BrowserPolicyConnector>
   CreateBrowserPolicyConnector();
 
+  // Called from ChromeContentBrowserClient::RegisterInProcessServices
+  virtual void RegisterInProcessServices(
+      content::ContentBrowserClient::StaticServiceMap* services);
+
  private:
   DISALLOW_COPY_AND_ASSIGN(BrowserProcessPlatformPartBase);
 };