Add file association for .webp to Chrome.

chrome/installer/util/shell_util.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.
 //
 // This file declares methods that are useful for integrating Chrome in
 // Windows shell. These methods are all static and currently part of
 // ShellUtil class.
 
 #ifndef CHROME_INSTALLER_UTIL_SHELL_UTIL_H_
 #define CHROME_INSTALLER_UTIL_SHELL_UTIL_H_
@@ skipping 216 matching lines @@
 
   // Name that we give to Chrome file association handler ProgId.
   static const wchar_t* kChromeHTMLProgId;
 
   // Description of Chrome file association handler ProgId.
   static const wchar_t* kChromeHTMLProgIdDesc;
 
   // Registry path that stores url associations on Vista.
   static const wchar_t* kRegVistaUrlPrefs;
 
-  // File extensions that Chrome registers itself for.
-  static const wchar_t* kFileAssociations[];
+  // File extensions that Chrome registers itself as the default handler
+  // for when the user makes Chrome the default browser.
+  static const wchar_t* kDefaultFileAssociations[];
+
+  // File extensions that Chrome registers itself as being capable of
+  // handling.
+  static const wchar_t* kPotentialFileAssociations[];
 
   // Protocols that Chrome registers itself as the default handler for
   // when the user makes Chrome the default browser.
   static const wchar_t* kBrowserProtocolAssociations[];
 
   // Protocols that Chrome registers itself as being capable of handling.
   static const wchar_t* kPotentialProtocolAssociations[];
 
   // Registry value name that is needed for ChromeHTML ProgId
   static const wchar_t* kRegUrlProtocol;
@@ skipping 306 matching lines @@
   // required by the base32 standard for inputs that aren't a multiple of 5
   // bytes.
   static string16 ByteArrayToBase32(const uint8* bytes, size_t size);
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ShellUtil);
 };
 
 
 #endif  // CHROME_INSTALLER_UTIL_SHELL_UTIL_H_