Another attempt at fixing dead frames being tracked by webNavigation

chrome/browser/renderer_host/test_navigation_listener.cc

Index: chrome/browser/renderer_host/test_navigation_listener.cc
diff --git a/chrome/browser/renderer_host/test_navigation_listener.cc b/chrome/browser/renderer_host/test_navigation_listener.cc
new file mode 100644
index 0000000000000000000000000000000000000000..b6e2f13850b901b930bd5fd0ea472451a82bab48
--- /dev/null
+++ b/chrome/browser/renderer_host/test_navigation_listener.cc
@@ -0,0 +1,69 @@
+// Copyright (c) 2012 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/renderer_host/test_navigation_listener.h"
+
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/resource_controller.h"
+#include "content/public/browser/resource_throttle.h"
+#include "googleurl/src/gurl.h"
+
+class TestNavigationListener::Throttle
+    : public content::ResourceThrottle,
+      public base::SupportsWeakPtr<TestNavigationListener::Throttle> {
+ public:
+  void Resume() {
+    controller()->Resume();
+  }
+
+  // content::ResourceThrottle implementation.
+  virtual void WillStartRequest(bool* defer) {
+    *defer = true;
+  }
+};
+
+TestNavigationListener::TestNavigationListener() {}
+
+TestNavigationListener::~TestNavigationListener() {}
+
+void TestNavigationListener::DelayRequestsForURL(const GURL& url)
+{

[battre, 2012/08/07 13:34:40]

nit: { in previous line

+  if (!content::BrowserThread::CurrentlyOn(content::BrowserThread::IO)) {
+    content::BrowserThread::PostTask(
+        content::BrowserThread::IO,
+        FROM_HERE,
+        base::Bind(&TestNavigationListener::DelayRequestsForURL, this, url));
+    return;
+  }
+  urls_to_delay_.insert(url);
+}
+
+void TestNavigationListener::ResumeAll()
+{

[battre, 2012/08/07 13:34:40]

nit: { in previous line

+  if (!content::BrowserThread::CurrentlyOn(content::BrowserThread::IO)) {
+    content::BrowserThread::PostTask(
+        content::BrowserThread::IO,
+        FROM_HERE,
+        base::Bind(&TestNavigationListener::ResumeAll, this));
+    return;
+  }
+  WeakThrottleList::const_iterator it;
+  for (it = throttles_.begin(); it != throttles_.end(); ++it) {
+    if (*it)
+      (*it)->Resume();
+  }
+  throttles_.clear();
+}
+
+content::ResourceThrottle* TestNavigationListener::CreateResourceThrottle(
+    const GURL& url,
+    ResourceType::Type resource_type) {
+  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));
+  if (urls_to_delay_.find(url) == urls_to_delay_.end())
+    return NULL;
+
+  Throttle* throttle = new Throttle();
+  throttles_.push_back(throttle->AsWeakPtr());
+  return throttle;
+}