Add a feature which, when enabled, blocks permissions after X prompt dismissals.

chrome/browser/permissions/permission_decision_auto_blocker_unittest.cc

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/permissions/permission_decision_auto_blocker.h"
+
+#include "base/bind.h"
+#include "chrome/test/base/chrome_render_view_host_test_harness.h"
+#include "chrome/test/base/testing_profile.h"
+#include "content/public/browser/permission_type.h"
+
+namespace {
+
+bool FilterGoogle(const GURL& url) {
+  return url == GURL("https://www.google.com");
+}
+
+bool FilterAll(const GURL& url) {
+  return true;
+}
+
+}  // namespace
+
+class PermissionDecisionAutoBlockerUnitTest
+    : public ChromeRenderViewHostTestHarness {
+ protected:
+  int GetDismissalCount(const GURL& url,
+                        content::PermissionType permission) {
+    PermissionDecisionAutoBlocker blocker;
+    return blocker.GetDismissalCount(profile(), url, permission);
+  }
+
+  int RecordDismissalCount(const GURL& url,
+                           content::PermissionType permission) {
+    PermissionDecisionAutoBlocker blocker;
+    blocker.ShouldChangeDismissalToBlock(profile(), url, permission);
+    return blocker.GetDismissalCount(profile(), url, permission);
+  }
+};
+
+TEST_F(PermissionDecisionAutoBlockerUnitTest, RemoveCountsByUrl) {
+  GURL url1("https://www.google.com");
+  GURL url2("https://www.example.com");
+
+  EXPECT_EQ(1,
+            RecordDismissalCount(url1, content::PermissionType::GEOLOCATION));
+  EXPECT_EQ(2,
+            RecordDismissalCount(url1, content::PermissionType::GEOLOCATION));
+  EXPECT_EQ(3,
+            RecordDismissalCount(url1, content::PermissionType::GEOLOCATION));
+
+  EXPECT_EQ(1,
+            RecordDismissalCount(url1, content::PermissionType::NOTIFICATIONS));
+
+  EXPECT_EQ(1,
+            RecordDismissalCount(url2, content::PermissionType::GEOLOCATION));
+
+  PermissionDecisionAutoBlocker::RemoveCountsByUrl(profile(),
+                                                   base::Bind(&FilterGoogle));
+
+  // Expect that url1's dismissals are gone, but url2's remain.
+  EXPECT_EQ(0, GetDismissalCount(url1, content::PermissionType::GEOLOCATION));
+  EXPECT_EQ(0, GetDismissalCount(url1, content::PermissionType::NOTIFICATIONS));
+  EXPECT_EQ(1, GetDismissalCount(url2, content::PermissionType::GEOLOCATION));
+
+  // Add some more dismissals.
+  EXPECT_EQ(1,
+            RecordDismissalCount(url1, content::PermissionType::GEOLOCATION));
+  EXPECT_EQ(1,
+            RecordDismissalCount(url1, content::PermissionType::NOTIFICATIONS));
+  EXPECT_EQ(2,
+            RecordDismissalCount(url2, content::PermissionType::GEOLOCATION));
+
+  // Remove everything and expect that it's all gone.
+  PermissionDecisionAutoBlocker::RemoveCountsByUrl(profile(),
+                                                   base::Bind(&FilterAll));
+
+  EXPECT_EQ(0, GetDismissalCount(url1, content::PermissionType::GEOLOCATION));
+  EXPECT_EQ(0, GetDismissalCount(url1, content::PermissionType::NOTIFICATIONS));
+  EXPECT_EQ(0, GetDismissalCount(url2, content::PermissionType::GEOLOCATION));
+}