[chromedriver] Apply page load timeout to slow cross-process navigations

chrome/test/chromedriver/net/timeout.cc

Index: chrome/test/chromedriver/net/timeout.cc
diff --git a/chrome/test/chromedriver/net/timeout.cc b/chrome/test/chromedriver/net/timeout.cc
new file mode 100644
index 0000000000000000000000000000000000000000..391a63f64ebe3c3b805229ed39ead62c299edc4f
--- /dev/null
+++ b/chrome/test/chromedriver/net/timeout.cc
@@ -0,0 +1,48 @@
+// Copyright (c) 2016 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/test/chromedriver/net/timeout.h"
+
+#include <algorithm>
+
+#include "base/logging.h"
+
+Timeout::Timeout() : start_(base::TimeTicks::Now()) {
+}
+
+Timeout::Timeout(const base::TimeDelta& duration) : Timeout() {
+  SetDuration(duration);
+}
+
+Timeout::Timeout(const base::TimeDelta& duration, const Timeout* outer)
+    : Timeout(duration) {
+  if (outer && !outer->deadline_.is_null())
+    deadline_ = std::min(outer->deadline_, deadline_);
+}
+
+void Timeout::SetDuration(const base::TimeDelta& duration) {
+  DCHECK(!start_.is_null());
+  if (deadline_.is_null()) {
+    deadline_ = start_ + duration;
+  } else if (deadline_ - start_ != duration) {
+    LOG(ERROR) << "Timeout::SetDuration was called with a duration different"
+                  " from what was already set: " << duration << " vs. "
+               << deadline_ - start_ << " (original).";
+    NOTREACHED();
+  }
+}
+
+bool Timeout::IsExpired() const {
+  return GetRemainingTime() <= base::TimeDelta();
+}
+
+base::TimeDelta Timeout::GetDuration() const {
+  return !deadline_.is_null() ? deadline_ - start_
+                              : base::TimeDelta::Max();
+}
+
+base::TimeDelta Timeout::GetRemainingTime() const {
+  return !deadline_.is_null() ? deadline_ - base::TimeTicks::Now()
+                              : base::TimeDelta::Max();
+}