refactor to Introduce AUDIO_CAPTURE and VIDEO_CAPTURE permissions.

chrome/browser/media/media_stream_device_permission_context_unittest.cc

+// Copyright 2015 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/media/media_stream_device_permission_context.h"
+
+#include "base/bind.h"
+#include "chrome/browser/infobars/infobar_service.h"
+#include "chrome/browser/permissions/permission_queue_controller.h"
+#include "chrome/browser/permissions/permission_request_id.h"
+#include "chrome/browser/ui/website_settings/permission_bubble_manager.h"
+#include "chrome/test/base/chrome_render_view_host_test_harness.h"
+#include "chrome/test/base/testing_profile.h"
+#include "components/content_settings/core/browser/host_content_settings_map.h"
+#include "components/content_settings/core/common/content_settings.h"
+#include "components/content_settings/core/common/content_settings_types.h"
+#include "content/public/browser/web_contents.h"
+#include "content/public/test/mock_render_process_host.h"
+#include "content/public/test/web_contents_tester.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+class TestPermissionContext : public MediaStreamDevicePermissionContext {
+ public:
+  explicit TestPermissionContext(Profile* profile,
+                                 const ContentSettingsType permission_type)

[xhwang, 2015/08/27 19:25:17]

s/explicit//

[guoweis_left_chromium, 2015/08/27 23:18:35]

Done.

+      : MediaStreamDevicePermissionContext(profile, permission_type) {}
+
+  ~TestPermissionContext() override {}
+};
+
+}  // anonymous namespace
+
+class MediaStreamDevicePermissionContextTests
+    : public ChromeRenderViewHostTestHarness {
+ protected:
+  MediaStreamDevicePermissionContextTests() = default;
+
+  void TestInsecureQueryingUrl(ContentSettingsType permission_type) {
+    TestPermissionContext permission_context(profile(), permission_type);
+    GURL insecure_url("http://www.example.com");
+    GURL secure_url("https://www.example.com");
+
+    // Check that there is no saved content settings.
+    EXPECT_EQ(CONTENT_SETTING_ASK,
+              profile()->GetHostContentSettingsMap()->GetContentSetting(
+                  insecure_url.GetOrigin(), insecure_url.GetOrigin(),
+                  permission_type, std::string()));
+    EXPECT_EQ(CONTENT_SETTING_ASK,
+              profile()->GetHostContentSettingsMap()->GetContentSetting(
+                  secure_url.GetOrigin(), insecure_url.GetOrigin(),
+                  permission_type, std::string()));
+    EXPECT_EQ(CONTENT_SETTING_ASK,
+              profile()->GetHostContentSettingsMap()->GetContentSetting(
+                  insecure_url.GetOrigin(), secure_url.GetOrigin(),
+                  permission_type, std::string()));
+
+    EXPECT_EQ(CONTENT_SETTING_BLOCK, permission_context.GetPermissionStatus(
+                                         insecure_url, insecure_url));
+    EXPECT_EQ(CONTENT_SETTING_BLOCK,
+              permission_context.GetPermissionStatus(insecure_url, secure_url));
+  }
+
+ private:
+  // ChromeRenderViewHostTestHarness:
+  void SetUp() override {
+    ChromeRenderViewHostTestHarness::SetUp();
+    InfoBarService::CreateForWebContents(web_contents());
+    PermissionBubbleManager::CreateForWebContents(web_contents());
+  }
+
+  DISALLOW_COPY_AND_ASSIGN(MediaStreamDevicePermissionContextTests);
+};
+
+// MEDIASTREAM_MIC permission status should be denied for insecure origin.
+TEST_F(MediaStreamDevicePermissionContextTests, TestMicInsecureQueryingUrl) {
+  TestInsecureQueryingUrl(CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC);
+}
+
+// MEDIASTREAM_CAMERA permission status should be denied for insecure origin.
+TEST_F(MediaStreamDevicePermissionContextTests, TestCameraInsecureQueryingUrl) {
+  TestInsecureQueryingUrl(CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA);

[mlamouri (slow - plz ping), 2015/08/27 10:03:40]

Can you check that it is working for secure origins?

You might want to test more situations too like relations between embedder and
requesting frame.

+}

[raymes, 2015/08/27 05:54:18]

There's a bunch of tests in MediaStreamDevicesControllerTest which should
probably be converted to test this file (e.g. setting content settings and
checking the result, setting policy and checking the result. I don't want to
make you do that change just yet but please add a TODO saying that we should add
more tests and they can be based off the tests in that file.

[guoweis_left_chromium, 2015/08/27 23:18:35]

Done.