Add core plumbing for Instant Extended work

chrome/browser/ui/search/search_types.h

Index: chrome/browser/ui/search/search_types.h
diff --git a/chrome/browser/ui/search/search_types.h b/chrome/browser/ui/search/search_types.h
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index 0000000000000000000000000000000000000000..038997d8e56e75f238a78f2472c4ac9e7f15145f
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+++ b/chrome/browser/ui/search/search_types.h
@@ -0,0 +1,60 @@
+// Copyright (c) 2012 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 CHROME_BROWSER_UI_SEARCH_SEARCH_TYPES_H_
+#define CHROME_BROWSER_UI_SEARCH_SEARCH_TYPES_H_
+#pragma once
+
+namespace chrome {
+namespace search {
+
+struct Mode {

[sky, 2012/06/21 18:26:49]

Add a description.

[dhollowa, 2012/06/21 22:16:43]

Done.

+  enum Type {
+    // The default state means anything but the following states.
+    MODE_DEFAULT,
+
+    // On the NTP page but the NTP isn't in a state that we should show it.
+    MODE_NTP_LOADING,
+
+    // On the NTP page and the NTP is ready to be displayed.
+    MODE_NTP,
+
+    // Any of the following:
+    // . on the ntp and modified the omnibox in some way.
+    // . on a search results page.
+    // . the omnibox has focus.
+    MODE_SEARCH,
+  };
+
+  Mode() : mode(MODE_DEFAULT), animate(false) {
+  }
+
+  Mode(Type in_mode, bool in_animate) : mode(in_mode), animate(in_animate) {
+  }
+
+  bool operator==(const Mode& rhs) const {
+    return mode == rhs.mode;
+    // |animate| is transient.  It doesn't count.
+  }
+
+  bool is_default() const {
+    return mode == MODE_DEFAULT;
+  }
+
+  bool is_ntp() const {
+    return mode == MODE_NTP || mode == MODE_NTP_LOADING;
+  }
+
+  bool is_search() const {
+    return mode == MODE_SEARCH;
+  }
+
+  Type mode;
+  bool animate;

[sky, 2012/06/21 18:26:49]

Add a description for animate.

[dhollowa, 2012/06/21 22:16:43]

Done.

+};
+
+}  // namespace search
+}  // namespace chrome
+
+#endif  // CHROME_BROWSER_UI_SEARCH_SEARCH_TYPES_H_