Move unpacker_unittests.cc and data files from chrome/ to extensions/

Most of the changes here are just moves, with only a few more notable
changes:

Add "manifest_version : 2" and change from theme to extension
-extensions/test/data/unpacker/bad_zip/manifest.json
-extensions/test/data/unpacker/bad_image/manifest.json
-extensions/test/data/unpacker/good_package/manifest.json

Changed BadPathError test and misc cleanup
-extensions/utility/unpacker_unittest.cc

Support for changes to the above mentioned BadPathError test
-extensions/test/test_extensions_client.h
-extensions/test/test_extensions_client.cc

Entire directory just deleted, not moved
-chrome/test/data/extensions/unpacker/bad_path/

BUG=447014

Review URL: https://codereview.chromium.org/849803004

Cr-Commit-Position: refs/heads/master@{#311954}

1 files changed, 1 insertions, 0 deletions

diff --git a/extensions/BUILD.gn b/extensions/BUILD.gn
index 0006144..c900458 100644
--- a/extensions/BUILD.gn
+++ b/extensions/BUILD.gn
@@ -255,6 +255,7 @@ if (false) {
       "renderer/script_context_unittest.cc",
       "renderer/utils_unittest.cc",
       "test/extensions_unittests_main.cc",
+      "utility/unpacker_unittest.cc",
     ]
 
     deps = [