Convert ExtensionProcessManager to BrowserContext, part 1

chrome/browser/extensions/extension_process_manager_browsertest.cc

+// Copyright 2013 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/extensions/extension_process_manager.h"
+
+#include "chrome/browser/extensions/browser_action_test_util.h"
+#include "chrome/browser/extensions/extension_browsertest.h"
+#include "chrome/browser/extensions/extension_service.h"
+#include "chrome/browser/extensions/extension_system.h"
+#include "chrome/test/base/in_process_browser_test.h"
+#include "content/public/browser/notification_service.h"
+#include "content/public/test/test_utils.h"
+
+using extensions::Extension;
+using extensions::ExtensionSystem;
+
+// Exists as a browser test because ExtensionHosts are hard to create without
+// a real browser.
+typedef ExtensionBrowserTest ExtensionProcessManagerBrowserTest;
+
+// Test that basic extension loading creates the appropriate ExtensionHosts
+// and background pages.
+IN_PROC_BROWSER_TEST_F(ExtensionProcessManagerBrowserTest,
+                       ExtensionHostCreation) {
+  ExtensionProcessManager* pm =
+      ExtensionSystem::Get(profile())->process_manager();
+
+  // Load an extension with a background page.
+  scoped_refptr<const Extension> extension =
+      LoadExtension(test_data_dir_.AppendASCII("api_test")
+                        .AppendASCII("browser_action")
+                        .AppendASCII("none"));
+  ASSERT_TRUE(extension.get());
+
+  // Process manager gains a background host.
+  EXPECT_EQ(1u, pm->background_hosts().size());
+  EXPECT_EQ(1u, pm->GetAllViews().size());
+  EXPECT_TRUE(pm->GetBackgroundHostForExtension(extension->id()));
+  EXPECT_TRUE(pm->GetSiteInstanceForURL(extension->url()));
+  EXPECT_EQ(1u, pm->GetRenderViewHostsForExtension(extension->id()).size());
+  EXPECT_FALSE(pm->IsBackgroundHostClosing(extension->id()));
+  EXPECT_EQ(0, pm->GetLazyKeepaliveCount(extension.get()));
+
+  // Unload the extension.
+  UnloadExtension(extension->id());
+
+  // Background host disappears.
+  EXPECT_EQ(0u, pm->background_hosts().size());
+  EXPECT_EQ(0u, pm->GetAllViews().size());
+  EXPECT_FALSE(pm->GetBackgroundHostForExtension(extension->id()));
+  EXPECT_TRUE(pm->GetSiteInstanceForURL(extension->url()));
+  EXPECT_EQ(0u, pm->GetRenderViewHostsForExtension(extension->id()).size());
+  EXPECT_FALSE(pm->IsBackgroundHostClosing(extension->id()));
+  EXPECT_EQ(0, pm->GetLazyKeepaliveCount(extension.get()));
+
+  // Load an extension with the ability to open a popup but no background
+  // page.
+  scoped_refptr<const Extension> popup =
+      LoadExtension(test_data_dir_.AppendASCII("api_test")
+                        .AppendASCII("browser_action")
+                        .AppendASCII("popup"));
+  ASSERT_TRUE(popup);
+
+  // No background host was added.
+  EXPECT_EQ(0u, pm->background_hosts().size());
+  EXPECT_EQ(0u, pm->GetAllViews().size());
+  EXPECT_FALSE(pm->GetBackgroundHostForExtension(popup->id()));
+  EXPECT_EQ(0u, pm->GetRenderViewHostsForExtension(popup->id()).size());
+  EXPECT_TRUE(pm->GetSiteInstanceForURL(popup->url()));
+  EXPECT_FALSE(pm->IsBackgroundHostClosing(popup->id()));
+  EXPECT_EQ(0, pm->GetLazyKeepaliveCount(popup.get()));
+
+  // Simulate clicking on the action to open a popup.
+  BrowserActionTestUtil test_util(browser());
+  content::WindowedNotificationObserver frame_observer(
+      content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME,
+      content::NotificationService::AllSources());
+  // Open popup in the first extension.
+  test_util.Press(0);
+  frame_observer.Wait();
+  ASSERT_TRUE(test_util.HasPopup());
+
+  // We now have a view, but still no background hosts.
+  EXPECT_EQ(0u, pm->background_hosts().size());
+  EXPECT_EQ(1u, pm->GetAllViews().size());
+  EXPECT_FALSE(pm->GetBackgroundHostForExtension(popup->id()));
+  EXPECT_EQ(1u, pm->GetRenderViewHostsForExtension(popup->id()).size());
+  EXPECT_TRUE(pm->GetSiteInstanceForURL(popup->url()));
+  EXPECT_FALSE(pm->IsBackgroundHostClosing(popup->id()));
+  EXPECT_EQ(0, pm->GetLazyKeepaliveCount(popup.get()));
+}