Update to Chromium revision a106f0ab (#464641)

- Remove CefWindowInfo.transparent_painting_enabled. Set
  CefBrowserSettings.background_color to an opaque or transparent
  value instead.

libcef/browser/browser_context_proxy.h

@@ -54,6 +54,7 @@ class CefBrowserContextProxy : public CefBrowserContext {
       content::ProtocolHandlerMap* protocol_handlers,
       content::URLRequestInterceptorScopedVector request_interceptors)
       override;
+  void RegisterInProcessServices(StaticServiceMap* services) override;
 
   // Profile methods.
   PrefService* GetPrefs() override;