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 <string>
+
 #include "base/string16.h"
 #include "googleurl/src/gurl.h"
 
 // Ways that the Instant suggested text is autocompleted into the omnibox.
 enum InstantCompleteBehavior {
   // Autocomplete the suggestion immediately.
   INSTANT_COMPLETE_NOW,
 
   // Do not autocomplete the suggestion. The suggestion may still be displayed
   // in the omnibox, but not made a part of the omnibox text by default (e.g.,
@@ skipping 68 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,
 };
 
+// The alignment of the theme background image.
+enum ThemeBackgroundImageAlignment {
+  THEME_BKGRND_IMAGE_ALIGN_CENTER,
+  THEME_BKGRND_IMAGE_ALIGN_LEFT,
+  THEME_BKGRND_IMAGE_ALIGN_TOP,
+  THEME_BKGRND_IMAGE_ALIGN_RIGHT,
+  THEME_BKGRND_IMAGE_ALIGN_BOTTOM,
+};
+
+// The tiling of the theme background image.
+enum ThemeBackgroundImageTiling {
+  THEME_BKGRND_IMAGE_NO_REPEAT,
+  THEME_BKGRND_IMAGE_REPEAT_X,
+  THEME_BKGRND_IMAGE_REPEAT_Y,
+  THEME_BKGRND_IMAGE_REPEAT,
+};
+
+struct ThemeBackgroundInfo {
+  ThemeBackgroundInfo();
+  ~ThemeBackgroundInfo();
+
+  // The theme background color in RGBA format where the R, G, B and A values
+  // are between 0 and 255 inclusive and always valid.
+  int color_r;
+  int color_g;
+  int color_b;
+  int color_a;
+
+  // The theme id for the theme background image.
+  // Value is only valid if there's a custom theme background image.
+  std::string theme_id;
+
+  // The theme background image horizontal alignment is only valid if |theme_id|
+  // is valid.
+  ThemeBackgroundImageAlignment image_horizontal_alignment;
+
+  // The theme background image vertical alignment is only valid if |theme_id|
+  // is valid.
+  ThemeBackgroundImageAlignment image_vertical_alignment;
+
+  // The theme background image tiling is only valid if |theme_id| is valid.
+  ThemeBackgroundImageTiling image_tiling;
+
+  // The theme background image height.
+  // Value is only valid if |theme_id| is valid.
+  uint16 image_height;
+};
+
 #endif  // CHROME_COMMON_INSTANT_TYPES_H_