Factor out RenderWidgetHostConnector

content/browser/android/render_widget_host_connector_browsertest.cc

+// Copyright 2017 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 "content/browser/android/render_widget_host_connector_browsertest.h"
+
+#include "content/browser/frame_host/interstitial_page_impl.h"
+#include "content/public/browser/interstitial_page_delegate.h"
+#include "content/public/test/browser_test_utils.h"
+#include "content/public/test/content_browser_test_utils.h"
+#include "net/dns/mock_host_resolver.h"
+#include "net/test/embedded_test_server/embedded_test_server.h"
+#include "url/gurl.h"
+
+namespace content {
+
+namespace {
+
+class TestInterstitialDelegate : public InterstitialPageDelegate {
+ private:
+  // InterstitialPageDelegate implementation.
+  std::string GetHTMLContents() override { return "<p>Interstitial</p>"; }
+};
+
+}  // namespace
+
+RenderWidgetHostConnectorTest::RenderWidgetHostConnectorTest() {}
+
+void RenderWidgetHostConnectorTest::SetUpOnMainThread() {
+  host_resolver()->AddRule("*", "127.0.0.1");
+  SetupCrossSiteRedirector(embedded_test_server());
+  ASSERT_TRUE(embedded_test_server()->Start());
+}
+
+IN_PROC_BROWSER_TEST_F(RenderWidgetHostConnectorTest,
+                       UpdateRWHVAInConnectorAtRenderViewHostSwapping) {
+  net::EmbeddedTestServer https_server(net::EmbeddedTestServer::TYPE_HTTPS);
+  https_server.ServeFilesFromSourceDirectory("content/test/data");
+  ASSERT_TRUE(https_server.Start());
+
+  GURL http_url(embedded_test_server()->GetURL("/title1.html"));
+
+  EXPECT_TRUE(NavigateToURL(shell(), http_url));
+  RenderWidgetHostViewAndroid* old_rwhva = render_widget_host_view_android();
+  RenderWidgetHostConnector* connector = render_widget_host_connector();
+  EXPECT_EQ(old_rwhva, connector->GetRWHVAForTesting());
+
+  // Forces RVH change within |web_contents| by navigating to an https page.
+  GURL https_url(https_server.GetURL("/title1.html"));
+  EXPECT_TRUE(NavigateToURL(shell(), https_url));
+  RenderWidgetHostViewAndroid* new_rwhva = render_widget_host_view_android();
+  EXPECT_EQ(new_rwhva, connector->GetRWHVAForTesting());
+}
+
+IN_PROC_BROWSER_TEST_F(RenderWidgetHostConnectorTest,
+                       RestoreMainRWHVAAfterInterstitial) {
+  EXPECT_TRUE(
+      NavigateToURL(shell(), embedded_test_server()->GetURL("/title1.html")));
+
+  RenderWidgetHostViewAndroid* main_rwhva = render_widget_host_view_android();
+  RenderWidgetHostConnector* connector = render_widget_host_connector();
+  EXPECT_EQ(main_rwhva, connector->GetRWHVAForTesting());
+
+  // Show an interstitial and then hide. Then interstitial RWHVA should be
+  // updated accordingly, and the old main RWHVA reference should be restored.
+  WebContentsImpl* contents = web_contents();
+  GURL interstitial_url("http://interstitial");
+  InterstitialPageImpl* interstitial = new InterstitialPageImpl(
+      contents, static_cast<RenderWidgetHostDelegate*>(contents), true,
+      interstitial_url, new TestInterstitialDelegate);
+  interstitial->Show();
+  WaitForInterstitialAttach(contents);
+  EXPECT_NE(main_rwhva, connector->GetRWHVAForTesting());
+
+  interstitial->Hide();
+  EXPECT_EQ(main_rwhva, connector->GetRWHVAForTesting());
+}
+
+IN_PROC_BROWSER_TEST_F(RenderWidgetHostConnectorTest,
+                       MainPageDestroyedWhileInBackground) {
+  EXPECT_TRUE(
+      NavigateToURL(shell(), embedded_test_server()->GetURL("/title1.html")));
+
+  RenderWidgetHostViewAndroid* main_rwhva = render_widget_host_view_android();
+  RenderWidgetHostConnector* connector = render_widget_host_connector();
+  EXPECT_EQ(main_rwhva, connector->GetRWHVAForTesting());
+
+  // Show an interstitial and destroy the main page in the background.
+  WebContentsImpl* contents = web_contents();
+  GURL interstitial_url("http://interstitial");
+  InterstitialPageImpl* interstitial = new InterstitialPageImpl(
+      contents, static_cast<RenderWidgetHostDelegate*>(contents), true,
+      interstitial_url, new TestInterstitialDelegate);
+  interstitial->Show();
+  WaitForInterstitialAttach(contents);
+  main_rwhva->Destroy();
+
+  // Ensure active RWHVA set to null even when the main one is destroyed first.
+  interstitial->Hide();
+  EXPECT_EQ(nullptr, connector->GetRWHVAForTesting());
+}
+
+IN_PROC_BROWSER_TEST_F(RenderWidgetHostConnectorTest,
+                       CleanUpConnectorReferenceAtWebContentsDestroyed) {
+  GURL http_url(embedded_test_server()->GetURL("/title1.html"));
+
+  EXPECT_TRUE(NavigateToURL(shell(), http_url));
+  RenderWidgetHostViewAndroid* rwhva = render_widget_host_view_android();
+  RenderWidgetHostConnector* connector = render_widget_host_connector();
+  EXPECT_EQ(connector, connector_in_rwhva(rwhva));
+
+  // Generate WebContentsObserver::WebContentsDestroyed by closing the contents.
+  web_contents()->Close();
+  EXPECT_EQ(nullptr, connector_in_rwhva(rwhva));
+}
+
+}  // namespace content