[MediaGalleries] Introduce an AV-checking base class for copy-move validation

chrome/browser/media_galleries/fileapi/supported_image_type_validator.cc

Index: chrome/browser/media_galleries/fileapi/supported_image_type_validator.cc
diff --git a/chrome/browser/media_galleries/fileapi/supported_image_type_validator.cc b/chrome/browser/media_galleries/fileapi/supported_image_type_validator.cc
index 9ae76253c3bb4db6d4584970202449ed06684405..24a400b0188b00c8b71fa5e935aac7be85063edb 100644
--- a/chrome/browser/media_galleries/fileapi/supported_image_type_validator.cc
+++ b/chrome/browser/media_galleries/fileapi/supported_image_type_validator.cc
@@ -116,19 +116,6 @@ void SupportedImageTypeValidator::StartPreWriteValidation(
                  weak_factory_.GetWeakPtr()));
 }
 
-void SupportedImageTypeValidator::StartPostWriteValidation(
-    const base::FilePath& dest_platform_path,
-    const ResultCallback& result_callback) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-  post_write_callback_ = result_callback;
-
-  // TODO(gbillock): Insert AV call here in the right validator.
-  BrowserThread::PostTask(
-      BrowserThread::IO,
-      FROM_HERE,
-      base::Bind(post_write_callback_, base::PLATFORM_FILE_OK));
-}
-
 SupportedImageTypeValidator::SupportedImageTypeValidator(
     const base::FilePath& path)
     : path_(path),