Remove the last Chrome dependencies from renderer, and enforce no more includes through DEPS. I ...

content/common/url_constants.h

+// Copyright (c) 2011 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.
+
+// Contains constants for known URLs and portions thereof.
+
+#ifndef CONTENT_COMMON_URL_CONSTANTS_H_
+#define CONTENT_COMMON_URL_CONSTANTS_H_
+#pragma once
+
+#include "content/common/url_constants.h"
+
+namespace chrome {
+
+// Canonical schemes you can use as input to GURL.SchemeIs().
+// TODO(jam): some of these don't below in the content layer, but are accessed
+// from there.
+extern const char kAboutScheme[];
+extern const char kBlobScheme[];
+extern const char kChromeDevToolsScheme[];
+extern const char kChromeInternalScheme[];
+extern const char kChromeUIScheme[];  // The scheme used for WebUIs.
+extern const char kCrosScheme[];      // The scheme used for ChromeOS.
+extern const char kDataScheme[];
+extern const char kExtensionScheme[];
+extern const char kFileScheme[];
+extern const char kFileSystemScheme[];
+extern const char kFtpScheme[];
+extern const char kHttpScheme[];
+extern const char kHttpsScheme[];
+extern const char kJavaScriptScheme[];
+extern const char kMailToScheme[];
+extern const char kMetadataScheme[];
+extern const char kUserScriptScheme[];
+extern const char kViewSourceScheme[];
+
+// Used to separate a standard scheme and the hostname: "://".
+extern const char kStandardSchemeSeparator[];
+
+// About URLs (including schemes).
+extern const char kAboutBlankURL[];
+extern const char kAboutCrashURL[];
+
+// Special URL used to start a navigation to an error page.
+extern const char kUnreachableWebDataURL[];
+
+}  // namespace chrome
+
+#endif  // CONTENT_COMMON_URL_CONSTANTS_H_