Implement mimetype sniffing for extensions.

chrome/common/extensions/extension.cc

 // Copyright (c) 2009 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.
 
 #include "chrome/common/extensions/extension.h"
 
 #include "app/resource_bundle.h"
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
@@ skipping 56 matching lines @@
 };
 
 #if defined(OS_WIN)
 const char* Extension::kExtensionRegistryPath =
     "Software\\Google\\Chrome\\Extensions";
 #endif
 
 // first 16 bytes of SHA256 hashed public key.
 const size_t Extension::kIdSize = 16;
 
+const char Extension::kMimeType[] = "application/x-chrome-extension";
+
 const int Extension::kKnownIconSizes[] = { 128 };
 
 Extension::~Extension() {
   for (PageActionMap::iterator i = page_actions_.begin();
        i != page_actions_.end(); ++i)
     delete i->second;
 }
 
 const std::string Extension::VersionString() const {
   return version_->GetString();
@@ skipping 787 matching lines @@
        it != page_actions().end(); ++it) {
     const std::vector<FilePath>& icon_paths = it->second->icon_paths();
     for (std::vector<FilePath>::const_iterator iter = icon_paths.begin();
          iter != icon_paths.end(); ++iter) {
       image_paths.insert(*iter);
     }
   }
 
   return image_paths;
 }