1 files changed, 49 insertions, 0 deletions
diff --git a/layout/generic/ScrollGeneration.cpp b/layout/generic/ScrollGeneration.cpp
new file mode 100644
index 0000000000..5f576187b3
--- /dev/null
+++ b/layout/generic/ScrollGeneration.cpp
@@ -0,0 +1,49 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "ScrollGeneration.h"
+
+#include <ostream>
+
+namespace mozilla {
+
+template <typename Tag>
+ScrollGeneration<Tag>::ScrollGeneration() : mValue(0) {}
+
+template <typename Tag>
+ScrollGeneration<Tag>::ScrollGeneration(uint64_t aValue) : mValue(aValue) {}
+
+template <typename Tag>
+bool ScrollGeneration<Tag>::operator<(
+    const ScrollGeneration<Tag>& aOther) const {
+  return mValue < aOther.mValue;
+}
+
+template <typename Tag>
+bool ScrollGeneration<Tag>::operator==(
+    const ScrollGeneration<Tag>& aOther) const {
+  return mValue == aOther.mValue;
+}
+
+template <typename Tag>
+bool ScrollGeneration<Tag>::operator!=(
+    const ScrollGeneration<Tag>& aOther) const {
+  return !(*this == aOther);
+}
+
+template <typename Tag>
+std::ostream& operator<<(std::ostream& aStream,
+                         const ScrollGeneration<Tag>& aGen) {
+  return aStream << aGen.mValue;
+}
+
+template struct ScrollGeneration<APZTag>;
+template struct ScrollGeneration<MainThreadTag>;
+
+template std::ostream& operator<<(std::ostream&,
+                                  const ScrollGeneration<APZTag>&);
+template std::ostream& operator<<(std::ostream&,
+                                  const ScrollGeneration<MainThreadTag>&);
+
+}  // namespace mozilla