WebApp: Extend testing functionality of WebAppInstallObserver.

Implement WebAppInstallObserver::SetWebAppInstalledDelegate.
It will be used with lambdas in sync tests.

Bug: 1020037
Change-Id: I01f5a60bd24f3b74dd52d62f3d7d61bdf477d929
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2162401
Auto-Submit: Alexey Baskakov <loyso@chromium.org>
Reviewed-by: Eric Willigers <ericwilligers@chromium.org>
Commit-Queue: Alexey Baskakov <loyso@chromium.org>
Cr-Commit-Position: refs/heads/master@{#762722}

chrome/browser/web_applications/test/web_app_install_observer.cc

@@ -23,6 +23,11 @@ AppId WebAppInstallObserver::AwaitNextInstall() {
   return std::move(app_id_);
 }
 
+void WebAppInstallObserver::SetWebAppInstalledDelegate(
+    WebAppInstalledDelegate delegate) {
+  app_installed_delegate_ = delegate;
+}
+
 void WebAppInstallObserver::SetWebAppWillBeUninstalledDelegate(
     WebAppUninstalledDelegate delegate) {
   app_will_be_uninstalled_delegate_ = delegate;
@@ -34,6 +39,9 @@ void WebAppInstallObserver::SetWebAppUninstalledDelegate(
 }
 
 void WebAppInstallObserver::OnWebAppInstalled(const AppId& app_id) {
+  if (app_installed_delegate_)
+    app_installed_delegate_.Run(app_id);
+
   app_id_ = app_id;
   run_loop_.Quit();
 }

chrome/browser/web_applications/test/web_app_install_observer.h

@@ -25,6 +25,10 @@ class WebAppInstallObserver final : public AppRegistrarObserver {
 
   AppId AwaitNextInstall();
 
+  using WebAppInstalledDelegate =
+      base::RepeatingCallback<void(const AppId& app_id)>;
+  void SetWebAppInstalledDelegate(WebAppInstalledDelegate delegate);
+
   using WebAppUninstalledDelegate =
       base::RepeatingCallback<void(const AppId& app_id)>;
   void SetWebAppWillBeUninstalledDelegate(WebAppUninstalledDelegate delegate);
@@ -39,6 +43,8 @@ class WebAppInstallObserver final : public AppRegistrarObserver {
   base::RunLoop run_loop_;
   AppId app_id_;
 
+  WebAppUninstalledDelegate app_installed_delegate_;
+
   WebAppUninstalledDelegate app_will_be_uninstalled_delegate_;
   WebAppUninstalledDelegate app_uninstalled_delegate_;