alternate ntp: implement searchbox api for instant overlay to adopt themes

chrome/common/instant_types.h

 // 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_COMMON_INSTANT_TYPES_H_
 #define CHROME_COMMON_INSTANT_TYPES_H_
 
 #include "base/string16.h"
 #include "googleurl/src/gurl.h"
 
@@ skipping 75 matching lines @@
 
   // Query suggestions and search results relevant when the user is typing in
   // the omnibox.
   INSTANT_SHOWN_QUERY_SUGGESTIONS,
 
   // ZeroSuggest suggestions relevant when the user has focused in the omnibox,
   // but not yet typed anything.
   INSTANT_SHOWN_ZERO_SUGGESTIONS,
 };
 
+// Specifies information required for instant overlay to adopt the browser's
+// theme in |NTP| mode.
+struct ThemeBackgroundInfo {
+  ThemeBackgroundInfo();

[dhollowa, 2012/11/15 22:00:33]

ctor/dtor are not needed.

[kuan, 2012/11/15 22:19:16]

Done.

[kuan, 2012/11/16 01:59:51]

actually, i need them.  clang doesn't build without them.

+  ~ThemeBackgroundInfo();
+
+  // The background color in RGBA format.

[dhollowa, 2012/11/15 22:00:33]

nit: Elaborate on the format of this string please.

[kuan, 2012/11/15 22:19:16]

Done.

+  string16 color_rgba;
+
+  // The image url.
+  string16 image_url;
+
+  // The image horizontal alignment.

[dhollowa, 2012/11/15 22:00:33]

ditto

[kuan, 2012/11/15 22:19:16]

Done.

+  string16 image_horizontal_alignment;
+
+  // The image vertical alignment.

[dhollowa, 2012/11/15 22:00:33]

ditto

[kuan, 2012/11/15 22:19:16]

Done.

+  string16 image_vertical_alignment;
+
+  // The tiling of the image.

[dhollowa, 2012/11/15 22:00:33]

ditto

[kuan, 2012/11/15 22:19:16]

Done.

+  string16 image_tiling;
+};
+
 #endif  // CHROME_COMMON_INSTANT_TYPES_H_