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

chrome/browser/extensions/default_apps.cc

Index: chrome/browser/extensions/default_apps.cc
diff --git a/chrome/browser/extensions/default_apps.cc b/chrome/browser/extensions/default_apps.cc
index 604f0cd7783aa3b8ac005099a07f03a81afcb47d..6c986815842316955a646004c1fa461dc85af330 100644
--- a/chrome/browser/extensions/default_apps.cc
+++ b/chrome/browser/extensions/default_apps.cc
@@ -132,8 +132,8 @@ bool Provider::ShouldInstallInProfile() {
 Provider::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)
     : extensions::ExternalProviderImpl(service, loader, crx_location,
                                        download_location, creation_flags),