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

chrome/browser/ui/intents/web_intent_picker_delegate.h

Index: chrome/browser/ui/intents/web_intent_picker_delegate.h
diff --git a/chrome/browser/ui/intents/web_intent_picker_delegate.h b/chrome/browser/ui/intents/web_intent_picker_delegate.h
index f6ef88f84348d7849781f53c3adcc0b14ea9502a..296dea191504411efa4aecbf0a3edaf98e70b316 100644
--- a/chrome/browser/ui/intents/web_intent_picker_delegate.h
+++ b/chrome/browser/ui/intents/web_intent_picker_delegate.h
@@ -6,6 +6,7 @@
 #define CHROME_BROWSER_UI_INTENTS_WEB_INTENT_PICKER_DELEGATE_H_
 #pragma once
 
+#include <string>
 #include "chrome/browser/ui/intents/web_intent_picker_model.h"
 
 namespace content {
@@ -29,6 +30,9 @@ class WebIntentPickerDelegate {
   virtual void OnInlineDispositionWebContentsCreated(
       content::WebContents* web_contents) = 0;
 
+  // Called when the user has chosen to install a suggested extension.
+  virtual void OnExtensionInstallRequested(const std::string& id) = 0;
+
   // Called when the user cancels out of the dialog, whether by closing it
   // manually or otherwise purposefully.
   virtual void OnCancelled() = 0;