Index: chrome/browser/subresource_filter/subresource_filter_activation_tracker.cc |
diff --git a/chrome/browser/subresource_filter/subresource_filter_activation_tracker.cc b/chrome/browser/subresource_filter/subresource_filter_activation_tracker.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..0034de850ce1716fa40f3c12f4f71fcfbf379d94 |
--- /dev/null |
+++ b/chrome/browser/subresource_filter/subresource_filter_activation_tracker.cc |
@@ -0,0 +1,32 @@ |
+// Copyright 2017 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/subresource_filter/subresource_filter_activation_tracker.h" |
+ |
+#include <algorithm> |
+ |
+#include "base/logging.h" |
+ |
+SubresourceFilterActivationTracker::SubresourceFilterActivationTracker() {} |
+SubresourceFilterActivationTracker::~SubresourceFilterActivationTracker() {} |
+ |
+void SubresourceFilterActivationTracker::OnWebContentsActivated( |
+ content::WebContents* web_contents, |
+ bool activated) { |
+ DCHECK(web_contents); |
+ if (activated) { |
+ activated_contents_.insert(web_contents); |
+ } else { |
+ activated_contents_.erase(web_contents); |
+ } |
+} |
+ |
+void SubresourceFilterActivationTracker::OnWebContentsDestroyed( |
+ content::WebContents* web_contents) { |
+ OnWebContentsActivated(web_contents, false /* activated */); |
+} |
+ |
+bool SubresourceFilterActivationTracker::HasActivatedWebContents() const { |
+ return !activated_contents_.empty(); |
+} |