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

chrome/browser/extensions/default_apps.h

Index: chrome/browser/extensions/default_apps.h
diff --git a/chrome/browser/extensions/default_apps.h b/chrome/browser/extensions/default_apps.h
index cc5ede1018d4c53949749b2b8ee2bd15b0f6c1ee..d5b16cb8d3fa1a539b701672acf36863634f6dcf 100644
--- a/chrome/browser/extensions/default_apps.h
+++ b/chrome/browser/extensions/default_apps.h
@@ -7,14 +7,11 @@
 
 #include "base/basictypes.h"
 #include "chrome/browser/extensions/external_provider_impl.h"
+#include "chrome/common/extensions/manifest.h"
 
 class PrefServiceSyncable;
 class Profile;
 
-namespace extensions {
-class Extension;
-}
-
 namespace base {
 class DictionaryValue;
 }
@@ -44,8 +41,8 @@ class Provider : public extensions::ExternalProviderImpl {
   Provider(Profile* profile,
            VisitorInterface* service,
            extensions::ExternalLoader* loader,
-           extensions::Extension::Location crx_location,
-           extensions::Extension::Location download_location,
+           extensions::Manifest::Location crx_location,
+           extensions::Manifest::Location download_location,
            int creation_flags);
 
   bool ShouldInstallInProfile();