Upstream oodles of Chrome for Android code into Chromium.

chrome/browser/android/history_report/usage_report_util.cc

Index: chrome/browser/android/history_report/usage_report_util.cc
diff --git a/chrome/browser/android/history_report/usage_report_util.cc b/chrome/browser/android/history_report/usage_report_util.cc
new file mode 100644
index 0000000000000000000000000000000000000000..013842622f6f2b89f91ec3c61d7d689ee48f133d
--- /dev/null
+++ b/chrome/browser/android/history_report/usage_report_util.cc
@@ -0,0 +1,51 @@
+
+// Copyright 2015 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/android/history_report/usage_report_util.h"
+
+#include <iomanip>
+#include <sstream>
+
+#include "chrome/browser/android/proto/delta_file.pb.h"
+#include "net/base/net_util.h"
+#include "url/gurl.h"
+
+namespace history_report {
+namespace usage_report_util {
+
+// Returns a levelDb key for a report. It's a concatenation of timestamp and id
+// fields of a report.
+std::string ReportToKey(const history_report::UsageReport& report) {
+  std::stringstream key;
+  key << std::setfill('0') << std::setw(15) << report.timestamp_ms()
+      << report.id();
+  return key.str();
+}
+
+bool IsTypedVisit(ui::PageTransition visit_transition) {
+  ui::PageTransition transition_type =
+      ui::PageTransitionStripQualifier(visit_transition);
+  return transition_type == ui::PAGE_TRANSITION_TYPED &&
+         !ui::PageTransitionIsRedirect(visit_transition);
+}
+
+bool ShouldIgnoreUrl(const GURL& url) {
+  if (url.spec().empty())
+    return true;
+
+  // Ignore local file URLs.
+  // TODO(nileshagrawal): Maybe we should ignore content:// urls too.
+  if (url.SchemeIsFile())
+    return true;
+
+  // Ignore localhost URLs.
+  if (net::IsLocalhost(url.host()))
+    return true;
+
+  return false;
+}
+
+}  // namespace usage_report_util
+}  // namespace history_report