Make image_decoder a Leaky LazyInstance

chrome/common/extensions/chrome_utility_extensions_messages.h

Index: chrome/common/extensions/chrome_utility_extensions_messages.h
diff --git a/chrome/common/extensions/chrome_utility_extensions_messages.h b/chrome/common/extensions/chrome_utility_extensions_messages.h
index 2d9c8f42daded7421780bcd4a11bf210047dbfeb..6613e478e84e06835895048c5f7a1afeb989d866 100644
--- a/chrome/common/extensions/chrome_utility_extensions_messages.h
+++ b/chrome/common/extensions/chrome_utility_extensions_messages.h
@@ -79,11 +79,6 @@ IPC_MESSAGE_CONTROL2(ChromeUtilityMsg_UnzipToDir,
                      base::FilePath /* zip_file */,
                      base::FilePath /* dir */)
 
-// Tell the utility process to decode the given image data, which is base64
-// encoded.
-IPC_MESSAGE_CONTROL1(ChromeUtilityMsg_DecodeImageBase64,
-                     std::string)  // base64 encoded image contents
-
 #if defined(OS_WIN)
 // Tell the utility process to parse the iTunes preference XML file contents
 // and return the path to the iTunes directory.