Move DOMActivityLogger and associated code from //chrome to //extensions

chrome/common/extensions/ad_injection_constants.cc

-// 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 "chrome/common/extensions/ad_injection_constants.h"
-
-#include "base/strings/string_util.h"
-
-namespace extensions {
-namespace ad_injection_constants {
-
-namespace keys {
-
-const char kType[] = "type";
-const char kChildren[] = "children";
-const char kSrc[] = "src";
-const char kHref[] = "href";
-
-}  // namespace keys
-
-const char kHtmlIframeSrcApiName[] = "HTMLIFrameElement.src";
-const char kHtmlEmbedSrcApiName[] = "HTMLEmbedElement.src";
-const char kAppendChildApiSuffix[] = "appendChild";
-
-// The maximum number of children to check when we examine a newly-added
-// element.
-extern const size_t kMaximumChildrenToCheck = 10u;
-
-// The maximum depth to check when we examine a newly-added element.
-extern const size_t kMaximumDepthToCheck = 5u;
-
-bool ApiCanInjectAds(const char* api) {
-  return api == kHtmlIframeSrcApiName ||
-         api == kHtmlEmbedSrcApiName ||
-         EndsWith(api, kAppendChildApiSuffix, true /* case sensitive */);
-}
-
-}  // namespace ad_injection_constants
-}  // namespace extensions