Add a getter for search provider logos.

chrome/browser/search_engines/template_url_prepopulate_data.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_BROWSER_SEARCH_ENGINES_TEMPLATE_URL_PREPOPULATE_DATA_H_
 #define CHROME_BROWSER_SEARCH_ENGINES_TEMPLATE_URL_PREPOPULATE_DATA_H_
 
 #include <stddef.h>
 #include <string>
 #include <vector>
@@ skipping 39 matching lines @@
 // not used.
 TemplateURL* GetPrepopulatedDefaultSearch(Profile* profile);
 
 // Returns the type of the matching engine, or SEARCH_ENGINE_OTHER if no engines
 // match.  This uses same-origin checks unless the |url| is a Google seach URL,
 // in which case we'll identify any valid Google hostname as "Google".
 //
 // NOTE: Must be called on the UI thread.
 SearchEngineType GetEngineType(const std::string& url);
 
+// Returns the logo (at the specified resolution) for |url|.  If no logo is
+// known, this may return an empty GURL.
+//
+// NOTE: Must be called on the UI thread.
+GURL GetLogoURL(const std::string& url);

[msw, 2012/08/27 21:57:26]

Make these args const TemplateURL& (or pointers) instead of a url string, then
determination via url/id/etc. is encapsulated.

[Peter Kasting, 2012/08/28 00:04:07]

Nit: I suggest one function that takes a second arg about which size to return. 
I suspect this will map better to how callers use this, and we might change to
return a gfx::Image or something someday which can package all the logo sizes.

[samarth, 2012/08/28 16:18:15]

Done.

[samarth, 2012/08/28 16:18:15]

Done.

+GURL GetLogo200PercentURL(const std::string& url);
+
 }  // namespace TemplateURLPrepopulateData
 
 #endif  // CHROME_BROWSER_SEARCH_ENGINES_TEMPLATE_URL_PREPOPULATE_DATA_H_