Add an unimplemented history API to WebView

public/web/WebHistoryCommitType.h

Index: public/web/WebHistoryCommitType.h
diff --git a/public/web/WebHistoryCommitType.h b/public/web/WebHistoryCommitType.h
new file mode 100644
index 0000000000000000000000000000000000000000..4180e1dd04c06449f60893e97aab94c2760a9838
--- /dev/null
+++ b/public/web/WebHistoryCommitType.h
@@ -0,0 +1,19 @@
+// 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.
+
+#ifndef WebHistoryCommitType_h
+#define WebHistoryCommitType_h
+
+namespace blink {
+
+enum WebHistoryCommitType {
+    WebStandardCommit,
+    WebBackForwardCommit,
+    WebInitialCommitInChildFrame,
+    WebHistoryInertCommit
+};

[abarth-chromium, 2014/03/27 23:00:47]

Can you add some comments explaining what each of these mean?

[Nate Chapin, 2014/03/27 23:27:05]

Done. 

Please let me know whether they're sufficient.

+
+} // namespace blink
+
+#endif