Allow drag-and-drop of zipped extensions on chrome://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 853cc3979df9b7164909f0597f2bd95442db1e33..a066bbbeffd36b9967f70c3b78c27d15a15cd29e 100644
--- a/chrome/browser/extensions/unpacked_installer.h
+++ b/chrome/browser/extensions/unpacked_installer.h
@@ -14,6 +14,7 @@
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/extensions/extension_install_checker.h"
+#include "chrome/browser/extensions/sandboxed_unpacker.h"
 
 class ExtensionService;
 
@@ -26,8 +27,7 @@ class Extension;
 // per UnpackedInstaller.
 // TODO(erikkay): It might be useful to be able to load a packed extension
 // (presumably into memory) without installing it.
-class UnpackedInstaller
-    : public base::RefCountedThreadSafe<UnpackedInstaller> {
+class UnpackedInstaller : public SandboxedUnpackerClient {
  public:
   typedef base::Callback<void(const base::FilePath&, const std::string&)>
       OnFailureCallback;
@@ -51,6 +51,16 @@ class UnpackedInstaller
   bool LoadFromCommandLine(const base::FilePath& extension_path,
                            std::string* extension_id);
 
+  void LoadFromZipFile(const base::FilePath& zip_path);
+
+  // SandboxedUnpackerClient
+  virtual void OnUnpackSuccess(const base::FilePath& temp_dir,
+                               const base::FilePath& extension_root,
+                               const base::DictionaryValue* original_manifest,
+                               const Extension* extension,
+                               const SkBitmap& install_icon) OVERRIDE;
+  virtual void OnUnpackFailure(const base::string16& error) OVERRIDE;
+
   // Allows prompting for plugins to be disabled; intended for testing only.
   bool prompt_for_plugins() { return prompt_for_plugins_; }
   void set_prompt_for_plugins(bool val) { prompt_for_plugins_ = val; }