ContentBrowserSanityChecker

content/public/test/content_browser_sanity_checker.cc

Index: content/public/test/content_browser_sanity_checker.cc
diff --git a/content/public/test/content_browser_sanity_checker.cc b/content/public/test/content_browser_sanity_checker.cc
new file mode 100644
index 0000000000000000000000000000000000000000..ff5cc1ecf43cf980a99bfc6189c535a590623283
--- /dev/null
+++ b/content/public/test/content_browser_sanity_checker.cc
@@ -0,0 +1,38 @@
+// Copyright 2014 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/public/test/content_browser_sanity_checker.h"
+
+#include "base/bind.h"
+#include "content/browser/web_contents/web_contents_impl.h"
+#include "content/public/test/web_contents_observer_sanity_checker.h"
+
+namespace content {
+
+namespace {
+bool g_consistency_checks_already_enabled = false;
+}
+
+ContentBrowserSanityChecker::ContentBrowserSanityChecker() {
+  CHECK(!g_consistency_checks_already_enabled)
+      << "There's no point in enabling this twice.";

[Avi (use Gerrit), 2014/12/22 22:53:50]

Don't use "this" here; make the error message self-explanatory.

[ncarter (slow), 2014/12/23 00:17:03]

Done.

+  g_consistency_checks_already_enabled = true;
+
+  creation_hook_ =
+      base::Bind(&ContentBrowserSanityChecker::OnWebContentsCreated,
+                 base::Unretained(this));
+  WebContentsImpl::FriendZone::AddCreatedCallbackForTesting(creation_hook_);
+}
+
+ContentBrowserSanityChecker::~ContentBrowserSanityChecker() {
+  WebContentsImpl::FriendZone::RemoveCreatedCallbackForTesting(creation_hook_);
+  g_consistency_checks_already_enabled = false;
+}
+
+void ContentBrowserSanityChecker::OnWebContentsCreated(
+    WebContents* web_contents) {
+  WebContentsObserverSanityChecker::Enable(web_contents);
+}
+
+}  // namespace content