Implement "appinstalled" event on Android.

chrome/browser/banners/app_banner_manager.h

Index: chrome/browser/banners/app_banner_manager.h
diff --git a/chrome/browser/banners/app_banner_manager.h b/chrome/browser/banners/app_banner_manager.h
index 15bb380e82d3f31cb699af498d128748e08402fb..63aa732c7b0cedf93a7d54b293da0a7540dba003 100644
--- a/chrome/browser/banners/app_banner_manager.h
+++ b/chrome/browser/banners/app_banner_manager.h
@@ -17,6 +17,7 @@
 #include "content/public/browser/web_contents_observer.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "third_party/WebKit/public/platform/modules/app_banner/app_banner.mojom.h"
+#include "third_party/WebKit/public/platform/modules/installation/installation.mojom.h"

[dominickn, 2016/12/15 03:45:59]

Nit: move this include to the cc file.

[Matt Giuca, 2016/12/15 06:17:23]

Done.

 
 class SkBitmap;
 struct WebApplicationInfo;
@@ -68,6 +69,11 @@ class AppBannerManager : public content::WebContentsObserver,
   // pipeline will be reported to the devtools console.
   virtual void RequestAppBanner(const GURL& validated_url, bool is_debug_mode);
 
+  // Informs the page that it has been installed via an app banner.
+  // This is redundant for the beforeinstallprompt event's promise being
+  // resolved, but is required by the install event spec.
+  void OnInstall();
+
   // Sends a message to the renderer that the user accepted the banner. Does
   // nothing if |request_id| does not match the current request.
   void SendBannerAccepted(int request_id);