[Media Feeds] Add Clear-Site-Data tests

Add tests for clear-site-data which should
reset the media feed.

BUG=1053599

Change-Id: If539e178aad9c04c3891930420f9f7b8cbbe7a79
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2225231Reviewed-by: Tommy Steimel <steimel@chromium.org>
Commit-Queue: Becca Hughes <beccahughes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#774168}

chrome/browser/media/feeds/media_feeds_browsertest.cc

@@ -46,6 +46,8 @@ const char kMediaFeedsAltTestURL[] = "/alt";
 
 const char kMediaFeedsMinTestURL[] = "/min";
 
+const char kMediaFeedsCacheClearTestURL[] = "/cache-clear";
+
 const char kMediaFeedsWellKnownURL[] = "/.well-known/media-feeds";
 
 const char kMediaFeedsWellKnownResponse[] = R"END({
@@ -231,6 +233,10 @@ class MediaFeedsBrowserTest : public InProcessBrowserTest {
     return url::Origin::Create(associated_origin_server_.GetURL("/"));
   }
 
+  void SetClearSiteDataHeader(const std::string& value) {
+    clear_site_data_header_ = value;
+  }
+
   bool HandledWellKnownRequest() const { return handled_well_known_; }
 
  private:
@@ -248,6 +254,10 @@ class MediaFeedsBrowserTest : public InProcessBrowserTest {
       return response;
     } else if (request.relative_url == kMediaFeedsAltTestURL) {
       return std::make_unique<net::test_server::BasicHttpResponse>();
+    } else if (request.relative_url == kMediaFeedsCacheClearTestURL) {
+      auto response = std::make_unique<net::test_server::BasicHttpResponse>();
+      response->AddCustomHeader("Clear-Site-Data", clear_site_data_header_);
+      return response;
     } else if (base::EndsWith(request.relative_url, "json",
                               base::CompareCase::SENSITIVE)) {
       if (full_test_data_.empty())
@@ -296,6 +306,8 @@ class MediaFeedsBrowserTest : public InProcessBrowserTest {
   base::test::ScopedFeatureList scoped_feature_list_;
 
   std::string full_test_data_;
+
+  std::string clear_site_data_header_;
 };
 
 IN_PROC_BROWSER_TEST_F(MediaFeedsBrowserTest, DiscoverAndFetch) {
@@ -985,6 +997,70 @@ IN_PROC_BROWSER_TEST_F(MediaFeedsBrowserTest,
   }
 }
 
+IN_PROC_BROWSER_TEST_F(MediaFeedsBrowserTest,
+                       ResetMediaFeed_ClearSiteDataHeader_Cache) {
+  DiscoverFeed(kMediaFeedsTestURL);
+
+  {
+    auto feeds = GetDiscoveredFeeds();
+    ASSERT_EQ(1u, feeds.size());
+    EXPECT_EQ(media_feeds::mojom::ResetReason::kNone, feeds[0]->reset_reason);
+
+    // Fetch the feed.
+    base::RunLoop run_loop;
+    GetMediaFeedsService()->FetchMediaFeed(
+        feeds[0]->id,
+        base::BindLambdaForTesting(
+            [&](const std::string& ignored) { run_loop.Quit(); }));
+    run_loop.Run();
+    WaitForDB();
+  }
+
+  // If we set the clear site data header to cache then we should reset the
+  // feed.
+  SetClearSiteDataHeader("\"cache\"");
+  ui_test_utils::NavigateToURL(
+      browser(), GetServer()->GetURL(kMediaFeedsCacheClearTestURL));
+  WaitForDB();
+
+  {
+    auto feeds = GetDiscoveredFeeds();
+    ASSERT_EQ(1u, feeds.size());
+    EXPECT_EQ(media_feeds::mojom::ResetReason::kCache, feeds[0]->reset_reason);
+  }
+}
+
+IN_PROC_BROWSER_TEST_F(MediaFeedsBrowserTest,
+                       ResetMediaFeed_ClearSiteDataHeader_ExecutionContexts) {
+  DiscoverFeed(kMediaFeedsTestURL);
+
+  {
+    auto feeds = GetDiscoveredFeeds();
+    ASSERT_EQ(1u, feeds.size());
+    EXPECT_EQ(media_feeds::mojom::ResetReason::kNone, feeds[0]->reset_reason);
+
+    // Fetch the feed.
+    base::RunLoop run_loop;
+    GetMediaFeedsService()->FetchMediaFeed(
+        feeds[0]->id,
+        base::BindLambdaForTesting(
+            [&](const std::string& ignored) { run_loop.Quit(); }));
+    run_loop.Run();
+    WaitForDB();
+  }
+
+  SetClearSiteDataHeader("\"executionContexts\"");
+  ui_test_utils::NavigateToURL(
+      browser(), GetServer()->GetURL(kMediaFeedsCacheClearTestURL));
+  WaitForDB();
+
+  {
+    auto feeds = GetDiscoveredFeeds();
+    ASSERT_EQ(1u, feeds.size());
+    EXPECT_EQ(media_feeds::mojom::ResetReason::kNone, feeds[0]->reset_reason);
+  }
+}
+
 // Parameterized test to check that media feed discovery works with different
 // header HTMLs.
 class MediaFeedsDiscoveryBrowserTest