[Password Generation] Breakout UMA stats for generated passwords

components/password_manager/core/browser/login_database_unittest.cc

Index: components/password_manager/core/browser/login_database_unittest.cc
diff --git a/components/password_manager/core/browser/login_database_unittest.cc b/components/password_manager/core/browser/login_database_unittest.cc
index 4faaa8c968354a04d8eec941341a5141702b763f..5ec0e2ed88c338f46238a41719119811fc78c9f6 100644
--- a/components/password_manager/core/browser/login_database_unittest.cc
+++ b/components/password_manager/core/browser/login_database_unittest.cc
@@ -11,6 +11,7 @@
 #include "base/path_service.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/test/histogram_tester.h"
 #include "base/time/time.h"
 #include "components/autofill/core/common/password_form.h"
 #include "components/password_manager/core/browser/psl_matching_helper.h"
@@ -951,6 +952,79 @@ TEST_F(LoginDatabaseTest, UpdateLogin) {
   EXPECT_EQ(form, *result[0]);
 }
 
+TEST_F(LoginDatabaseTest, ReportMetricsTest) {
+  PasswordForm password_form;
+  password_form.origin = GURL("http://example.com");
+  password_form.username_value = ASCIIToUTF16("test1@gmail.com");
+  password_form.password_value = ASCIIToUTF16("test");
+  password_form.signon_realm = "http://example.com/";
+  password_form.times_used = 0;
+  EXPECT_EQ(AddChangeForForm(password_form), db_.AddLogin(password_form));
+
+  password_form.username_value = ASCIIToUTF16("test2@gmail.com");
+  password_form.times_used = 1;
+  EXPECT_EQ(AddChangeForForm(password_form), db_.AddLogin(password_form));
+
+  password_form.origin = GURL("http://second.example.com");
+  password_form.signon_realm = "http://second.example.com";
+  password_form.times_used = 3;
+  EXPECT_EQ(AddChangeForForm(password_form), db_.AddLogin(password_form));
+
+  password_form.username_value = ASCIIToUTF16("test3@gmail.com");
+  password_form.type = PasswordForm::TYPE_GENERATED;
+  password_form.times_used = 2;
+  EXPECT_EQ(AddChangeForForm(password_form), db_.AddLogin(password_form));
+
+  password_form.origin = GURL("http://third.example.com/");
+  password_form.signon_realm = "http://third.example.com/";
+  password_form.times_used = 4;
+  EXPECT_EQ(AddChangeForForm(password_form), db_.AddLogin(password_form));
+
+  base::HistogramTester histogram_tester;
+  db_.ReportMetrics("", false);
+
+  histogram_tester.ExpectUniqueSample(
+      "PasswordManager.TotalAccounts.UserCreated.WithoutCustomPassphrase",
+      3,
+      1);
+  histogram_tester.ExpectBucketCount(
+      "PasswordManager.AccountsPerSite.UserCreated.WithoutCustomPassphrase",
+      1,
+      1);
+  histogram_tester.ExpectBucketCount(
+      "PasswordManager.AccountsPerSite.UserCreated.WithoutCustomPassphrase",
+      2,
+      1);
+  histogram_tester.ExpectBucketCount(
+      "PasswordManager.TimesPasswordUsed.UserCreated.WithoutCustomPassphrase",
+      0,
+      1);
+  histogram_tester.ExpectBucketCount(
+      "PasswordManager.TimesPasswordUsed.UserCreated.WithoutCustomPassphrase",
+      1,
+      1);
+  histogram_tester.ExpectBucketCount(
+      "PasswordManager.TimesPasswordUsed.UserCreated.WithoutCustomPassphrase",
+      3,
+      1);
+  histogram_tester.ExpectUniqueSample(
+      "PasswordManager.TotalAccounts.AutoGenerated.WithoutCustomPassphrase",
+      2,
+      1);
+  histogram_tester.ExpectUniqueSample(
+      "PasswordManager.AccountsPerSite.AutoGenerated.WithoutCustomPassphrase",
+      1,
+      2);
+  histogram_tester.ExpectBucketCount(
+      "PasswordManager.TimesPasswordUsed.AutoGenerated.WithoutCustomPassphrase",
+      2,
+      1);
+  histogram_tester.ExpectBucketCount(
+      "PasswordManager.TimesPasswordUsed.AutoGenerated.WithoutCustomPassphrase",
+      4,
+      1);
+}
+
 #if defined(OS_POSIX)
 // Only the current user has permission to read the database.
 //