Revert of "Speculatively launch Service Workers on mouse/touch events."

content/public/browser/service_worker_context.h

Index: content/public/browser/service_worker_context.h
diff --git a/content/public/browser/service_worker_context.h b/content/public/browser/service_worker_context.h
index 90c3d93ad587025b5c88774716313c632e1a94e7..22d13f9bd57ac84e19382a9430fc1a88f20b0199 100644
--- a/content/public/browser/service_worker_context.h
+++ b/content/public/browser/service_worker_context.h
@@ -12,10 +12,6 @@
 #include "content/public/browser/service_worker_usage_info.h"
 #include "url/gurl.h"
 
-namespace blink {
-enum class WebNavigationHintType;
-}
-
 namespace content {
 
 enum class ServiceWorkerCapability {
@@ -143,18 +139,6 @@ class ServiceWorkerContext {
   // be called on the UI thread.
   virtual void ClearAllServiceWorkersForTest(const base::Closure& callback) = 0;
 
-  // Starts a Service Worker for |document_url| for a navigation hint in the
-  // specified render process |render_process_id|. Must be called from the UI
-  // thread. The |callback| will always be called on the UI thread.
-  // This method can fail if:
-  //  * No Service Worker was registered for |document_url|.
-  //  * The specified render process is not suitable for loading |document_url|.
-  virtual void StartServiceWorkerForNavigationHint(
-      const GURL& document_url,
-      blink::WebNavigationHintType type,
-      int render_process_id,
-      const ResultCallback& callback) = 0;
-
  protected:
   ServiceWorkerContext() {}
   virtual ~ServiceWorkerContext() {}