Fix Manifest leak in Extension::InitFromValue.

chrome/common/extensions/extension.cc

Index: chrome/common/extensions/extension.cc
diff --git a/chrome/common/extensions/extension.cc b/chrome/common/extensions/extension.cc
index 1e84be7560bbf5313dc5b32322f2292a53eacef4..1690e4431cc9c4d5770e6f98e4381bf3143afaf4 100644
--- a/chrome/common/extensions/extension.cc
+++ b/chrome/common/extensions/extension.cc
@@ -1385,6 +1385,7 @@ bool Extension::InitFromValue(extensions::Manifest* manifest, int flags,
                               std::string* error) {
   DCHECK(error);
   base::AutoLock auto_lock(runtime_data_lock_);
+  manifest_.reset(manifest);
 
   if (!manifest->ValidateManifest(error))
     return false;
@@ -1446,8 +1447,6 @@ bool Extension::InitFromValue(extensions::Manifest* manifest, int flags,
 
   creation_flags_ = flags;
 
-  manifest_.reset(manifest);
-
   // Initialize the URL.
   extension_url_ = Extension::GetBaseURLFromExtensionId(id());