Prerender: Move tests for prerender from core/exported/ to core/loader/

This CL moves the tests for prerender from core/exported/ to
core/loader/ to support core/exported/ deprecation. See the following
doc for details of the deprecation:
https://docs.google.com/document/d/1lzGeXN4nwnANdFSpVxmJ1TUgb3QBPFCjVxLsFVBlKdE/edit?usp=sharing

This CL also renames prerendering_test.cc to prerender_test.cc, and
PrerenderingTest to PrerenderTest for consistency with other prerender
components.

Bug: n/a
Change-Id: Ia1af6176b3cb2e01e5fa9f7f514801f1c352a10d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2409431
Commit-Queue: Hiroki Nakagawa <nhiroki@chromium.org>
Reviewed-by: Matt Falkenhagen <falken@chromium.org>
Cr-Commit-Position: refs/heads/master@{#807398}

third_party/blink/renderer/core/BUILD.gn

@@ -1083,7 +1083,6 @@ source_set("unit_tests") {
     "execution_context/agent_metrics_collector_test.cc",
     "execution_context/execution_context_lifecycle_state_observer_test.cc",
     "exported/local_frame_client_impl_test.cc",
-    "exported/prerendering_test.cc",
     "exported/web_document_subresource_filter_test.cc",
     "exported/web_document_test.cc",
     "exported/web_drag_data_test.cc",
@@ -1286,6 +1285,7 @@ source_set("unit_tests") {
     "loader/modulescript/module_tree_linker_test.cc",
     "loader/navigation_policy_test.cc",
     "loader/ping_loader_test.cc",
+    "loader/prerender_test.cc",
     "loader/previews_resource_loading_hints_test.cc",
     "loader/programmatic_scroll_test.cc",
     "loader/progress_tracker_test.cc",

third_party/blink/renderer/core/exported/prerendering_test.cc → third_party/blink/renderer/core/loader/prerender_test.cc

@@ -159,9 +159,9 @@ class MockPrerenderProcessor : public mojom::blink::PrerenderProcessor {
   size_t add_count_ = 0;
 };
 
-class PrerenderingTest : public testing::Test {
+class PrerenderTest : public testing::Test {
  public:
-  ~PrerenderingTest() override {
+  ~PrerenderTest() override {
     if (web_view_helper_.GetWebView())
       UnregisterMockPrerenderProcessor();
     url_test_helpers::UnregisterAllURLsAndClearMemoryCache();
@@ -254,7 +254,7 @@ class PrerenderingTest : public testing::Test {
 
 }  // namespace
 
-TEST_F(PrerenderingTest, SinglePrerender) {
+TEST_F(PrerenderTest, SinglePrerender) {
   Initialize("http://www.foo.com/", "prerender/single_prerender.html");
 
   std::unique_ptr<MockPrerender> prerender =
@@ -284,7 +284,7 @@ TEST_F(PrerenderingTest, SinglePrerender) {
   EXPECT_EQ("webkitprerenderstop", ConsoleAt(3));
 }
 
-TEST_F(PrerenderingTest, CancelPrerender) {
+TEST_F(PrerenderTest, CancelPrerender) {
   Initialize("http://www.foo.com/", "prerender/single_prerender.html");
 
   std::unique_ptr<MockPrerender> prerender =
@@ -302,7 +302,7 @@ TEST_F(PrerenderingTest, CancelPrerender) {
   EXPECT_EQ(0u, prerender->AbandonCount());
 }
 
-TEST_F(PrerenderingTest, AbandonPrerender) {
+TEST_F(PrerenderTest, AbandonPrerender) {
   Initialize("http://www.foo.com/", "prerender/single_prerender.html");
 
   std::unique_ptr<MockPrerender> prerender =
@@ -328,7 +328,7 @@ TEST_F(PrerenderingTest, AbandonPrerender) {
   EXPECT_EQ(0u, prerender->AbandonCount());
 }
 
-TEST_F(PrerenderingTest, TwoPrerenders) {
+TEST_F(PrerenderTest, TwoPrerenders) {
   Initialize("http://www.foo.com/", "prerender/multiple_prerenders.html");
 
   std::unique_ptr<MockPrerender> first_prerender =
@@ -356,7 +356,7 @@ TEST_F(PrerenderingTest, TwoPrerenders) {
   EXPECT_EQ("second_webkitprerenderstart", ConsoleAt(1));
 }
 
-TEST_F(PrerenderingTest, TwoPrerendersRemovingFirstThenNavigating) {
+TEST_F(PrerenderTest, TwoPrerendersRemovingFirstThenNavigating) {
   Initialize("http://www.foo.com/", "prerender/multiple_prerenders.html");
 
   std::unique_ptr<MockPrerender> first_prerender =
@@ -387,7 +387,7 @@ TEST_F(PrerenderingTest, TwoPrerendersRemovingFirstThenNavigating) {
   EXPECT_EQ(0u, second_prerender->AbandonCount());
 }
 
-TEST_F(PrerenderingTest, TwoPrerendersAddingThird) {
+TEST_F(PrerenderTest, TwoPrerendersAddingThird) {
   Initialize("http://www.foo.com/", "prerender/multiple_prerenders.html");
 
   std::unique_ptr<MockPrerender> first_prerender =
@@ -415,7 +415,7 @@ TEST_F(PrerenderingTest, TwoPrerendersAddingThird) {
   EXPECT_EQ(0u, third_prerender->AbandonCount());
 }
 
-TEST_F(PrerenderingTest, ShortLivedClient) {
+TEST_F(PrerenderTest, ShortLivedClient) {
   Initialize("http://www.foo.com/", "prerender/single_prerender.html");
 
   std::unique_ptr<MockPrerender> prerender =
@@ -433,7 +433,7 @@ TEST_F(PrerenderingTest, ShortLivedClient) {
   prerender->NotifyDidStartPrerender();
 }
 
-TEST_F(PrerenderingTest, FastRemoveElement) {
+TEST_F(PrerenderTest, FastRemoveElement) {
   Initialize("http://www.foo.com/", "prerender/single_prerender.html");
 
   std::unique_ptr<MockPrerender> prerender =
@@ -454,7 +454,7 @@ TEST_F(PrerenderingTest, FastRemoveElement) {
   EXPECT_EQ(0u, ConsoleLength());
 }
 
-TEST_F(PrerenderingTest, MutateTarget) {
+TEST_F(PrerenderTest, MutateTarget) {
   Initialize("http://www.foo.com/", "prerender/single_prerender.html");
 
   std::unique_ptr<MockPrerender> prerender =
@@ -481,7 +481,7 @@ TEST_F(PrerenderingTest, MutateTarget) {
   EXPECT_EQ(0u, mutated_prerender->AbandonCount());
 }
 
-TEST_F(PrerenderingTest, MutateRel) {
+TEST_F(PrerenderTest, MutateRel) {
   Initialize("http://www.foo.com/", "prerender/single_prerender.html");
 
   std::unique_ptr<MockPrerender> prerender =