Files.app: Show drive sync state in the progress center.

chrome/browser/resources/file_manager/manifest.json

Index: chrome/browser/resources/file_manager/manifest.json
diff --git a/chrome/browser/resources/file_manager/manifest.json b/chrome/browser/resources/file_manager/manifest.json
index 7e6431f5b29a6e1ac0f52b73b4e4f834beac8fb5..3000e038834320a69e3a37bca5991a0d38c5e701 100644
--- a/chrome/browser/resources/file_manager/manifest.json
+++ b/chrome/browser/resources/file_manager/manifest.json
@@ -219,12 +219,14 @@
         "common/js/progress_center_common.js",
         "common/js/util.js",
         "background/js/device_handler.js",
+        "background/js/drive_sync_handler.js",
         "background/js/file_operation_handler.js",
         "background/js/file_operation_manager.js",
         "background/js/progress_center.js",
         "background/js/test_util.js",
         "background/js/volume_manager.js",
-        "background/js/background.js"]
+        "background/js/background.js"
+      ]
     },
     // chrome-extension://pmfjbimdmchhbnneeidfognadeopoehp is the image loader extension.
     "content_security_policy": "default-src 'none'; script-src 'self' chrome://resources chrome-extension://pmfjbimdmchhbnneeidfognadeopoehp; style-src 'self' 'unsafe-inline' chrome://resources; frame-src 'self' about:; img-src 'self' chrome://resources chrome://theme data: https://docs.google.com https://*.googleusercontent.com chrome://extension-icon; media-src 'self' https://*.googleusercontent.com; connect-src https://drive.google.com; object-src 'self'"