Disallow packing or loading unpacked manifest v1 extensions.

chrome/browser/extensions/unpacked_installer.h

Index: chrome/browser/extensions/unpacked_installer.h
diff --git a/chrome/browser/extensions/unpacked_installer.h b/chrome/browser/extensions/unpacked_installer.h
index 2cc3ec420545a708b23da80af55707d98b108377..0aa1f93fbc39eda47a92280058a79f846f909416 100644
--- a/chrome/browser/extensions/unpacked_installer.h
+++ b/chrome/browser/extensions/unpacked_installer.h
@@ -41,6 +41,15 @@ class UnpackedInstaller
   bool prompt_for_plugins() { return prompt_for_plugins_; }
   void set_prompt_for_plugins(bool val) { prompt_for_plugins_ = val; }
 
+  // Allows overriding of whether modern manifest versions are required;
+  // intended for testing.
+  bool require_modern_manifest_version() const {
+    return require_modern_manifest_version_;
+  }
+  void set_require_modern_manifest_version(bool val) {
+    require_modern_manifest_version_ = val;
+  }
+
  private:
   friend class base::RefCountedThreadSafe<UnpackedInstaller>;
 
@@ -59,7 +68,7 @@ class UnpackedInstaller
   // what file access flags to pass to extension_file_util::LoadExtension.
   void GetAbsolutePath();
   void CheckExtensionFileAccess();
-  void LoadWithFileAccess(bool allow_file_access);
+  void LoadWithFileAccess(int flags);
 
   // Notify the frontend that there was an error loading an extension.
   void ReportExtensionLoadError(const std::string& error);
@@ -67,6 +76,9 @@ class UnpackedInstaller
   // Called when an unpacked extension has been loaded and installed.
   void OnLoaded(const scoped_refptr<const Extension>& extension);
 
+  // Helper to get the Extension::CreateFlags for the installing extension.
+  int GetFlags();
+
   base::WeakPtr<ExtensionService> service_weak_;
 
   // The pathname of the directory to load from, which is an absolute path
@@ -77,6 +89,10 @@ class UnpackedInstaller
   // loading.
   bool prompt_for_plugins_;
 
+  // Whether to require the extension installed to have a modern manifest
+  // version.
+  bool require_modern_manifest_version_;
+
   DISALLOW_COPY_AND_ASSIGN(UnpackedInstaller);
 };