More implementation details of extension content verification

chrome/common/extensions/extension_constants.h

Index: chrome/common/extensions/extension_constants.h
diff --git a/chrome/common/extensions/extension_constants.h b/chrome/common/extensions/extension_constants.h
index 9406495bfbbf2c37f843219f84654d1906b9f1d5..936330f90314dabaf55c0db0dfbae307e8651713 100644
--- a/chrome/common/extensions/extension_constants.h
+++ b/chrome/common/extensions/extension_constants.h
@@ -282,6 +282,10 @@ extern const char kAppStateReadyToRun[];
 // The path part of the file system url used for media file systems.
 extern const char kMediaFileSystemPathPart[];
 
+// The key used for signing some pieces of data from the webstore.
+extern const uint8 kWebstoreSignaturesPublicKey[];
+extern const int kWebstoreSignaturesPublicKeySize;
+
 }  // namespace extension_misc
 
 namespace extensions {