Pull CrxInstaller out of ExtensionsService.

chrome/browser/extensions/sandboxed_extension_unpacker.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/browser/extensions/sandboxed_extension_unpacker.h"
 
 #include <set>
 
 #include "base/crypto/signature_verifier.h"
 #include "base/file_util.h"
@@ skipping 12 matching lines @@
 
 #include "third_party\skia\include\core\SkBitmap.h"
 
 const char SandboxedExtensionUnpacker::kExtensionHeaderMagic[] = "Cr24";
 
 SandboxedExtensionUnpacker::SandboxedExtensionUnpacker(
     const FilePath& crx_path, ResourceDispatcherHost* rdh,
     SandboxedExtensionUnpackerClient* client)
       : crx_path_(crx_path), client_loop_(MessageLoop::current()), rdh_(rdh),
         client_(client), got_response_(false) {
-
-  AddRef();
 }
 
 void SandboxedExtensionUnpacker::Start() {
   // Create a temporary directory to work in.
   if (!temp_dir_.CreateUniqueTempDir()) {
     ReportFailure("Could not create temporary directory.");
     return;
   }
 
   // Initialize the path that will eventually contain the unpacked extension.
@@ skipping 217 matching lines @@
     return false;
   }
 
   net::Base64Encode(std::string(reinterpret_cast<char*>(&key.front()),
       key.size()), &public_key_);
   return true;
 }
 
 void SandboxedExtensionUnpacker::ReportFailure(const std::string& error) {
   client_->OnUnpackFailure(error);
-  Release();
 }
 
 void SandboxedExtensionUnpacker::ReportSuccess() {
   // Client takes ownership of temporary directory and extension.
   client_->OnUnpackSuccess(temp_dir_.Take(), extension_root_,
                            extension_.release());
-  Release();
 }