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

chrome/common/instant_types.h

Index: chrome/common/instant_types.h
diff --git a/chrome/common/instant_types.h b/chrome/common/instant_types.h
index 627a565791f5e76828e00d17f4bb153dc564de7c..dc4ac1fc88a106cd3edc8195c2e86b32f04f2101 100644
--- a/chrome/common/instant_types.h
+++ b/chrome/common/instant_types.h
@@ -93,4 +93,26 @@ enum InstantShownReason {
   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_