Move permission warning message handling from PermissionSet to PermissionMessageProvider.

chrome/browser/extensions/extension_install_prompt.cc

Index: chrome/browser/extensions/extension_install_prompt.cc
diff --git a/chrome/browser/extensions/extension_install_prompt.cc b/chrome/browser/extensions/extension_install_prompt.cc
index ae201f10348f610d33824caae28e137f58d884f4..66c7ab9f98c439ff190a31f6c8a19626c2e6a681 100644
--- a/chrome/browser/extensions/extension_install_prompt.cc
+++ b/chrome/browser/extensions/extension_install_prompt.cc
@@ -36,6 +36,7 @@
 #include "extensions/common/extension_resource.h"
 #include "extensions/common/manifest.h"
 #include "extensions/common/manifest_constants.h"
+#include "extensions/common/permissions/permission_message_provider.h"
 #include "extensions/common/url_pattern.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
@@ -801,9 +802,11 @@ void ExtensionInstallPrompt::ShowConfirmation() {
     Manifest::Type extension_type = extension_ ?
         extension_->GetType() : Manifest::TYPE_UNKNOWN;
     prompt_.SetPermissions(
-        permissions_->GetWarningMessages(extension_type));
+        extensions::PermissionMessageProvider::Get()->
+            GetWarningMessages(permissions_, extension_type));
     prompt_.SetPermissionsDetails(
-        permissions_->GetWarningMessagesDetails(extension_type));
+        extensions::PermissionMessageProvider::Get()->
+            GetWarningMessagesDetails(permissions_, extension_type));
   }
 
   switch (prompt_.type()) {