Revert 239921 "Revert 239759 "The comment in base64.h implies th..."

trunk/src/chrome/browser/extensions/extension_protocols.cc

Index: trunk/src/chrome/browser/extensions/extension_protocols.cc
===================================================================
--- trunk/src/chrome/browser/extensions/extension_protocols.cc	(revision 239942)
+++ trunk/src/chrome/browser/extensions/extension_protocols.cc	(working copy)
@@ -86,15 +86,14 @@
                                           last_modified_time.ToInternalValue());
     hash = base::SHA1HashString(hash);
     std::string etag;
-    if (base::Base64Encode(hash, &etag)) {
-      raw_headers.append(1, '\0');
-      raw_headers.append("ETag: \"");
-      raw_headers.append(etag);
-      raw_headers.append("\"");
-      // Also force revalidation.
-      raw_headers.append(1, '\0');
-      raw_headers.append("cache-control: no-cache");
-    }
+    base::Base64Encode(hash, &etag);
+    raw_headers.append(1, '\0');
+    raw_headers.append("ETag: \"");
+    raw_headers.append(etag);
+    raw_headers.append("\"");
+    // Also force revalidation.
+    raw_headers.append(1, '\0');
+    raw_headers.append("cache-control: no-cache");
   }
 
   raw_headers.append(2, '\0');