Extract duplicated code in browser_tests for closing a browser.

chrome/test/base/in_process_browser_test.cc

Index: chrome/test/base/in_process_browser_test.cc
diff --git a/chrome/test/base/in_process_browser_test.cc b/chrome/test/base/in_process_browser_test.cc
index cb63fb1464cc312a393a082090aa012a62868974..ec65e5d21658819fabd0c66e63860e87942c3002 100644
--- a/chrome/test/base/in_process_browser_test.cc
+++ b/chrome/test/base/in_process_browser_test.cc
@@ -19,6 +19,7 @@
 #include "base/thread_task_runner_handle.h"
 #include "base/threading/non_thread_safe.h"
 #include "chrome/browser/browser_process.h"
+#include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
 #include "chrome/browser/net/net_error_tab_helper.h"
 #include "chrome/browser/profiles/profile.h"
@@ -377,6 +378,30 @@ void InProcessBrowserTest::TearDown() {
   BrowserTestBase::TearDown();
 }
 
+void InProcessBrowserTest::CloseBrowserSynchronously(Browser* browser) {
+  content::WindowedNotificationObserver observer(
+      chrome::NOTIFICATION_BROWSER_CLOSED,
+      content::NotificationService::AllSources());

[Robert Sesek, 2015/07/08 22:19:36]

May want to limit this to just the |browser| Source.

+  browser->window()->Close();
+#if defined(OS_MACOSX)
+  // BrowserWindowController depends on the auto release pool being recycled
+  // in the message loop to delete itself, which frees the Browser object
+  // which fires this event.
+  AutoreleasePool()->Recycle();
+#endif
+  observer.Wait();
+}
+
+void InProcessBrowserTest::CloseAllBrowsers() {
+  chrome::CloseAllBrowsers();
+#if defined(OS_MACOSX)
+  // BrowserWindowController depends on the auto release pool being recycled
+  // in the message loop to delete itself, which frees the Browser object
+  // which fires this event.
+  AutoreleasePool()->Recycle();
+#endif
+}
+
 // TODO(alexmos): This function should expose success of the underlying
 // navigation to tests, which should make sure navigations succeed when
 // appropriate. See https://crbug.com/425335