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

chrome/common/extensions/permissions/permission_set.cc

Index: chrome/common/extensions/permissions/permission_set.cc
diff --git a/chrome/common/extensions/permissions/permission_set.cc b/chrome/common/extensions/permissions/permission_set.cc
index df2b8b1b91ecba206c697adfd6aeee2eda9bc212..0efc26dfc95d7a284a4d909f3182e3a0489d5557 100644
--- a/chrome/common/extensions/permissions/permission_set.cc
+++ b/chrome/common/extensions/permissions/permission_set.cc
@@ -267,7 +267,7 @@ std::set<std::string>
 }
 
 PermissionMessages PermissionSet::GetPermissionMessages(
-    Extension::Type extension_type) const {
+    Manifest::Type extension_type) const {
   PermissionMessages messages;
 
   if (HasEffectiveFullAccess()) {
@@ -279,7 +279,7 @@ PermissionMessages PermissionSet::GetPermissionMessages(
 
   // Since platform apps always use isolated storage, they can't (silently)
   // access user data on other domains, so there's no need to prompt.
-  if (extension_type != Extension::TYPE_PLATFORM_APP) {
+  if (extension_type != Manifest::TYPE_PLATFORM_APP) {
     if (HasEffectiveAccessToAllHosts()) {
       messages.push_back(PermissionMessage(
           PermissionMessage::kHostsAll,
@@ -299,7 +299,7 @@ PermissionMessages PermissionSet::GetPermissionMessages(
 }
 
 std::vector<string16> PermissionSet::GetWarningMessages(
-    Extension::Type extension_type) const {
+    Manifest::Type extension_type) const {
   std::vector<string16> messages;
   PermissionMessages permissions = GetPermissionMessages(extension_type);