Move Extension Location and Type enums to Manifest, and move InstallWarning to its own file.

chrome/common/extensions/extension_builder.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_COMMON_EXTENSIONS_EXTENSION_BUILDER_H_
 #define CHROME_COMMON_EXTENSIONS_EXTENSION_BUILDER_H_
 
+#include "base/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
-#include "chrome/common/extensions/extension.h"
+#include "chrome/common/extensions/manifest.h"
 #include "chrome/common/extensions/value_builder.h"
 
 namespace extensions {
+class Extension;
 
 // An easier way to create extensions than Extension::Create.  The
 // constructor sets up some defaults which are customized using the
 // methods.  The only method that must be called is SetManifest().
 class ExtensionBuilder {
  public:
   ExtensionBuilder();
   ~ExtensionBuilder();
 
   // Can only be called once, after which it's invalid to use the builder.
   // CHECKs that the extension was created successfully.
   scoped_refptr<Extension> Build();
 
   // Defaults to FilePath().
   ExtensionBuilder& SetPath(const FilePath& path);
 
-  // Defaults to Extension::LOAD.
-  ExtensionBuilder& SetLocation(Extension::Location location);
+  // Defaults to Manifest::LOAD.
+  ExtensionBuilder& SetLocation(Manifest::Location location);
 
   ExtensionBuilder& SetManifest(scoped_ptr<base::DictionaryValue> manifest);
   ExtensionBuilder& SetManifest(DictionaryBuilder& manifest_builder) {
     return SetManifest(manifest_builder.Build());
   }
 
   ExtensionBuilder& AddFlags(int init_from_value_flags);
 
   // Defaults to the default extension ID created in Extension::Create.
   ExtensionBuilder& SetID(const std::string& id);
 
  private:
   FilePath path_;
-  Extension::Location location_;
+  Manifest::Location location_;
   scoped_ptr<base::DictionaryValue> manifest_;
   int flags_;
   std::string id_;
 };
 
 } // namespace extensions
 
 #endif  // CHROME_COMMON_EXTENSIONS_EXTENSION_BUILDER_H_