Revert 128189 - [Web Intents] Inline installation of extensions in web intents picker.

chrome/browser/ui/intents/web_intent_picker.h

Index: chrome/browser/ui/intents/web_intent_picker.h
===================================================================
--- chrome/browser/ui/intents/web_intent_picker.h	(revision 128190)
+++ chrome/browser/ui/intents/web_intent_picker.h	(working copy)
@@ -32,12 +32,6 @@
   // Hides the UI for this picker, and destroys its UI.
   virtual void Close() = 0;
 
-  // Called when an extension is successfully installed via the picker.
-  virtual void OnExtensionInstallSuccess(const std::string& id) {}
-
-  // Called when an extension installation started via the picker has failed.
-  virtual void OnExtensionInstallFailure(const std::string& id) {}
-
   // Called when the controller has finished all pending asynchronous
   // activities.
   virtual void OnPendingAsyncCompleted() {}