WebApps: Support WebApp.Engagement histograms

Update WebAppMetrics histograms when the kDesktopPWAsWithoutExtensions
feature is enabled, and a web app launches.

Not yet updating: histograms indicating if an app was installed by the
user.

Bug: 918986
Change-Id: I66b356776b7de5d6c6156517777b92e56dbd92a5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1846625
Commit-Queue: Eric Willigers <ericwilligers@chromium.org>
Reviewed-by: Alexey Baskakov <loyso@chromium.org>
Cr-Commit-Position: refs/heads/master@{#705783}

chrome/browser/ui/web_applications/web_app_engagement_browsertest.cc

@@ -6,6 +6,7 @@
 
 #include <bitset>
 
+#include "base/metrics/statistics_recorder.h"
 #include "base/test/bind_test_util.h"
 #include "base/test/metrics/histogram_tester.h"
 #include "chrome/browser/engagement/site_engagement_service.h"
@@ -119,6 +120,40 @@ void ExpectTotalCounts(const base::HistogramTester& tester,
   }
 }
 
+void ExpectLaunchCounts(const base::HistogramTester& tester,
+                        base::HistogramBase::Count windowLaunches,
+                        base::HistogramBase::Count tabLaunches) {
+  tester.ExpectBucketCount("Extensions.HostedAppLaunchContainer",
+                           apps::mojom::LaunchContainer::kLaunchContainerWindow,
+                           windowLaunches);
+  tester.ExpectBucketCount("Extensions.HostedAppLaunchContainer",
+                           apps::mojom::LaunchContainer::kLaunchContainerTab,
+                           tabLaunches);
+  tester.ExpectTotalCount("Extensions.HostedAppLaunchContainer",
+                          windowLaunches + tabLaunches);
+
+  if (tabLaunches > 0) {
+    tester.ExpectUniqueSample("Extensions.AppTabLaunchType",
+                              extensions::LAUNCH_TYPE_REGULAR, tabLaunches);
+  } else {
+    EXPECT_EQ(nullptr, base::StatisticsRecorder::FindHistogram(
+                           "Extensions.AppTabLaunchType"));
+  }
+
+  tester.ExpectUniqueSample("Extensions.BookmarkAppLaunchSource",
+                            apps::mojom::AppLaunchSource::kSourceTest,
+                            windowLaunches + tabLaunches);
+
+  tester.ExpectBucketCount("Extensions.BookmarkAppLaunchContainer",
+                           apps::mojom::LaunchContainer::kLaunchContainerWindow,
+                           windowLaunches);
+  tester.ExpectBucketCount("Extensions.BookmarkAppLaunchContainer",
+                           apps::mojom::LaunchContainer::kLaunchContainerTab,
+                           tabLaunches);
+  tester.ExpectTotalCount("Extensions.BookmarkAppLaunchContainer",
+                          windowLaunches + tabLaunches);
+}
+
 }  // namespace
 
 namespace web_app {
@@ -192,6 +227,13 @@ class WebAppEngagementBrowserTest : public WebAppControllerBrowserTestBase {
   DISALLOW_COPY_AND_ASSIGN(WebAppEngagementBrowserTest);
 };
 
+// TODO(crbug.com/1012171): Migrate all to WebAppEngagementBrowserTest.
+class HostedAppEngagementBrowserTest : public WebAppEngagementBrowserTest {
+ public:
+  HostedAppEngagementBrowserTest() = default;
+  ~HostedAppEngagementBrowserTest() override = default;
+};
+
 IN_PROC_BROWSER_TEST_P(WebAppEngagementBrowserTest, AppInWindow) {
   base::HistogramTester tester;
 
@@ -216,9 +258,10 @@ IN_PROC_BROWSER_TEST_P(WebAppEngagementBrowserTest, AppInWindow) {
 
   TestEngagementEventWebAppLaunch(tester, histograms);
   TestEngagementEventsAfterLaunch(histograms, app_browser);
+  ExpectLaunchCounts(tester, /*windowLaunches=*/1, /*tabLaunches=*/0);
 }
 
-IN_PROC_BROWSER_TEST_P(WebAppEngagementBrowserTest, AppInTab) {
+IN_PROC_BROWSER_TEST_P(HostedAppEngagementBrowserTest, AppInTab) {
   base::HistogramTester tester;
 
   const GURL example_url = GURL("http://example.org/");
@@ -241,9 +284,10 @@ IN_PROC_BROWSER_TEST_P(WebAppEngagementBrowserTest, AppInTab) {
 
   TestEngagementEventWebAppLaunch(tester, histograms);
   TestEngagementEventsAfterLaunch(histograms, browser);
+  ExpectLaunchCounts(tester, /*windowLaunches=*/0, /*tabLaunches=*/1);
 }
 
-IN_PROC_BROWSER_TEST_P(WebAppEngagementBrowserTest, AppWithoutScope) {
+IN_PROC_BROWSER_TEST_P(HostedAppEngagementBrowserTest, AppWithoutScope) {
   base::HistogramTester tester;
 
   const GURL example_url = GURL("http://example.org/");
@@ -270,6 +314,7 @@ IN_PROC_BROWSER_TEST_P(WebAppEngagementBrowserTest, AppWithoutScope) {
 
   TestEngagementEventWebAppLaunch(tester, histograms);
   TestEngagementEventsAfterLaunch(histograms, browser);
+  ExpectLaunchCounts(tester, /*windowLaunches=*/1, /*tabLaunches=*/0);
 }
 
 IN_PROC_BROWSER_TEST_P(WebAppEngagementBrowserTest, TwoApps) {
@@ -315,6 +360,7 @@ IN_PROC_BROWSER_TEST_P(WebAppEngagementBrowserTest, TwoApps) {
                       SiteEngagementService::ENGAGEMENT_WEBAPP_SHORTCUT_LAUNCH,
                       3);
   ExpectTotalCounts(tester, ~histograms, 0);
+  ExpectLaunchCounts(tester, /*windowLaunches=*/3, /*tabLaunches=*/0);
 }
 
 IN_PROC_BROWSER_TEST_P(WebAppEngagementBrowserTest, ManyUserApps) {
@@ -355,9 +401,10 @@ IN_PROC_BROWSER_TEST_P(WebAppEngagementBrowserTest, ManyUserApps) {
                       SiteEngagementService::ENGAGEMENT_WEBAPP_SHORTCUT_LAUNCH,
                       4);
   ExpectTotalCounts(tester, ~histograms, 0);
+  ExpectLaunchCounts(tester, /*windowLaunches=*/4, /*tabLaunches=*/0);
 }
 
-IN_PROC_BROWSER_TEST_P(WebAppEngagementBrowserTest, DefaultApp) {
+IN_PROC_BROWSER_TEST_P(HostedAppEngagementBrowserTest, DefaultApp) {
   base::HistogramTester tester;
 
   ASSERT_TRUE(embedded_test_server()->Start());
@@ -380,9 +427,11 @@ IN_PROC_BROWSER_TEST_P(WebAppEngagementBrowserTest, DefaultApp) {
 
   TestEngagementEventWebAppLaunch(tester, histograms);
   TestEngagementEventsAfterLaunch(histograms, browser);
+  ExpectLaunchCounts(tester, /*windowLaunches=*/1, /*tabLaunches=*/0);
 }
 
-IN_PROC_BROWSER_TEST_P(WebAppEngagementBrowserTest, NavigateAwayFromAppTab) {
+IN_PROC_BROWSER_TEST_P(HostedAppEngagementBrowserTest, NavigateAwayFromAppTab) {
+  base::HistogramTester tester;
   const GURL app_url = GURL("http://example.org/app/");
   const GURL outer_url = GURL("http://example.org/");
 
@@ -412,6 +461,7 @@ IN_PROC_BROWSER_TEST_P(WebAppEngagementBrowserTest, NavigateAwayFromAppTab) {
     histograms[kHistogramUpToThreeUserInstalledApps] = true;
     TestEngagementEventsAfterLaunch(histograms, browser);
   }
+  ExpectLaunchCounts(tester, /*windowLaunches=*/0, /*tabLaunches=*/1);
 }
 
 IN_PROC_BROWSER_TEST_P(WebAppEngagementBrowserTest, RecordedForNonApps) {
@@ -436,6 +486,13 @@ IN_PROC_BROWSER_TEST_P(WebAppEngagementBrowserTest, RecordedForNonApps) {
 INSTANTIATE_TEST_SUITE_P(
     /* no prefix */,
     WebAppEngagementBrowserTest,
+    ::testing::Values(ControllerType::kHostedAppController,
+                      ControllerType::kUnifiedControllerWithBookmarkApp,
+                      ControllerType::kUnifiedControllerWithWebApp));
+
+INSTANTIATE_TEST_SUITE_P(
+    /* no prefix */,
+    HostedAppEngagementBrowserTest,
     ::testing::Values(ControllerType::kHostedAppController,
                       ControllerType::kUnifiedControllerWithBookmarkApp));
 

chrome/browser/ui/web_applications/web_app_launch_manager.cc

@@ -4,17 +4,22 @@
 
 #include "chrome/browser/ui/web_applications/web_app_launch_manager.h"
 
+#include "base/metrics/histogram_macros.h"
 #include "chrome/browser/app_mode/app_mode_utils.h"
 #include "chrome/browser/apps/app_service/app_launch_params.h"
+#include "chrome/browser/banners/app_banner_settings_helper.h"
+#include "chrome/browser/engagement/site_engagement_service.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/web_applications/components/web_app_helpers.h"
+#include "chrome/browser/web_applications/components/web_app_install_utils.h"
 #include "chrome/browser/web_applications/components/web_app_tab_helper.h"
 #include "chrome/browser/web_applications/web_app.h"
 #include "chrome/browser/web_applications/web_app_provider.h"
 #include "chrome/browser/web_applications/web_app_registrar.h"
 #include "chrome/browser/web_launch/web_launch_files_helper.h"
 #include "content/public/browser/render_view_host.h"
+#include "extensions/common/constants.h"
 #include "third_party/blink/public/common/features.h"
 #include "third_party/blink/public/mojom/renderer_preferences.mojom.h"
 
@@ -67,9 +72,6 @@ content::WebContents* ShowWebApplicationWindow(
   DCHECK(tab_helper);
   tab_helper->SetAppId(app_id);
 
-  // TODO(https://crbug.com/988928): Update SiteEngagementService
-  // and AppBannerSettingsHelper.
-
   browser->window()->Show();
   web_contents->SetInitialFocus();
 
@@ -96,12 +98,37 @@ content::WebContents* WebAppLaunchManager::OpenApplication(
 
   Browser* browser = CreateWebApplicationWindow(profile(), params.app_id);
 
-  return ShowWebApplicationWindow(
-      params, params.app_id,
-      params.override_url.is_empty()
+  const GURL url = params.override_url.is_empty()
                        ? provider_->registrar().GetAppLaunchURL(params.app_id)
-          : params.override_url,
-      browser, WindowOpenDisposition::NEW_FOREGROUND_TAB);
+                       : params.override_url;
+  content::WebContents* web_contents =
+      ShowWebApplicationWindow(params, params.app_id, url, browser,
+                               WindowOpenDisposition::NEW_FOREGROUND_TAB);
+
+  // TODO(crbug.com/1014328): Populate WebApp metrics instead of Extensions.
+
+  UMA_HISTOGRAM_ENUMERATION("Extensions.HostedAppLaunchContainer",
+                            params.container);
+  if (params.container == apps::mojom::LaunchContainer::kLaunchContainerTab) {
+    UMA_HISTOGRAM_ENUMERATION("Extensions.AppTabLaunchType",
+                              extensions::LAUNCH_TYPE_REGULAR, 100);
+  }
+  UMA_HISTOGRAM_ENUMERATION("Extensions.BookmarkAppLaunchSource",
+                            params.source);
+  UMA_HISTOGRAM_ENUMERATION("Extensions.BookmarkAppLaunchContainer",
+                            params.container);
+
+  // Record the launch time in the site engagement service. A recent web
+  // app launch will provide an engagement boost to the origin.
+  SiteEngagementService::Get(profile())->SetLastShortcutLaunchTime(web_contents,
+                                                                   url);
+
+  // Refresh the app banner added to homescreen event. The user may have
+  // cleared their browsing data since installing the app, which removes the
+  // event and will potentially permit a banner to be shown for the site.
+  RecordAppBanner(web_contents, url);
+
+  return web_contents;
 }
 
 bool WebAppLaunchManager::OpenApplicationWindow(

chrome/browser/web_applications/web_app_registrar.cc

@@ -41,8 +41,9 @@ bool WebAppRegistrar::WasExternalAppUninstalledByUser(
 }
 
 bool WebAppRegistrar::WasInstalledByUser(const AppId& app_id) const {
+  // TODO(crbug.com/1012171): Implement.
   NOTIMPLEMENTED();
-  return false;
+  return true;
 }
 
 base::Optional<AppId> WebAppRegistrar::FindAppWithUrlInScope(
@@ -77,7 +78,17 @@ base::Optional<AppId> WebAppRegistrar::FindAppWithUrlInScope(
 
 int WebAppRegistrar::CountUserInstalledApps() const {
   NOTIMPLEMENTED();
-  return 0;
+
+  int num_user_installed = 0;
+  for (const WebApp& app : AllApps()) {
+    if (!app.is_locally_installed())
+      continue;
+
+    // TODO(crbug.com/1012171): Exclude if not installed by user.
+
+    ++num_user_installed;
+  }
+  return num_user_installed;
 }
 
 std::string WebAppRegistrar::GetAppShortName(const AppId& app_id) const {