Get web app icon via FavIconHelper and auto repair/update

chrome/browser/web_applications/web_app.h

Index: chrome/browser/web_applications/web_app.h
diff --git a/chrome/browser/web_applications/web_app.h b/chrome/browser/web_applications/web_app.h
index 9bcfe0f0b8265f245c9512948870b4fe6a72e542..28b1e9c6f5ad72c17dde0cf4811e4d98bc6edd22 100644
--- a/chrome/browser/web_applications/web_app.h
+++ b/chrome/browser/web_applications/web_app.h
@@ -8,6 +8,10 @@
 #include "base/file_path.h"
 #include "base/task.h"
 #include "chrome/browser/shell_integration.h"
+#include "webkit/glue/dom_operations.h"
+
+class Profile;
+class TabContents;
 
 namespace web_app {
 
@@ -33,6 +37,26 @@ void CreateShortcut(
 // Returns true if given url is a valid web app url.
 bool IsValidUrl(const GURL& url);
 
+// Returns data dir for web apps for given profile.
+FilePath GetDataDir(Profile* profile);
+
+// Extracts icons info from web app data. Take only square shaped icons and
+// sort them from smallest to largest.
+typedef std::vector<webkit_glue::WebApplicationInfo::IconInfo> IconInfoList;
+void GetIconsInfo(const webkit_glue::WebApplicationInfo& app_info,
+                  IconInfoList* icons);
+
+// Extracts shortcut info of given TabContents.
+void GetShortcutInfoForTab(TabContents* tab_contents,
+                           ShellIntegration::ShortcutInfo* info);
+
+// Updates web app shortcut of the TabContents. This function checks and
+// updates web app icon and shortcuts if needed. For icon, the check is based
+// on MD5 hash of icon image. For shortcuts, it checks the desktop, start menu
+// and quick launch (as well as pinned shortcut) for shortcut and only
+// updates (recreates) them if they exits.
+void UpdateShortcutForTabContents(TabContents* tab_contents);
+
 };  // namespace web_app
 
 #endif  // CHROME_BROWSER_WEB_APPLICATIONS_WEB_APP_H_