Infrastructure for reading V8's initial snapshot from external files

chrome/installer/mini_installer.gypi

Index: chrome/installer/mini_installer.gypi
diff --git a/chrome/installer/mini_installer.gypi b/chrome/installer/mini_installer.gypi
index c5ae0b004cf5ee7752344e0701e6319530b162d2..1c79acfafb2703f83c2fc32de5ef3d2bc44bb44c 100644
--- a/chrome/installer/mini_installer.gypi
+++ b/chrome/installer/mini_installer.gypi
@@ -179,6 +179,12 @@
             '<(PRODUCT_DIR)/icudtl.dat',
           ],
         }],
+        ['v8_use_external_startup_data == 1', {
+          'inputs': [
+            '<(PRODUCT_DIR)/natives_blob.bin',
+            '<(PRODUCT_DIR)/snapshot_blob.bin',
+          ],
+        }],
       ],
       'inputs': [
         '<(create_installer_archive_py_path)',