Modify experimental identity flow to display scope descriptions and details.

chrome/test/data/extensions/browsertest/scopes/manifest.json

Index: chrome/test/data/extensions/browsertest/scopes/manifest.json
diff --git a/chrome/test/data/extensions/browsertest/scopes/manifest.json b/chrome/test/data/extensions/browsertest/scopes/manifest.json
new file mode 100644
index 0000000000000000000000000000000000000000..d2e15e34b2933493799b22a0631478f3daa891ad
--- /dev/null
+++ b/chrome/test/data/extensions/browsertest/scopes/manifest.json
@@ -0,0 +1,11 @@
+{
+  "name": "scopes browser test",
+  "manifest_version": 2,
+  "version": "1",
+  "permissions": ["experimental", "clipboardRead", "geolocation"],
+  "oauth2": {
+    "client_id": "12345.apps.googleusercontent.com",
+    "scopes": [ "https://www.google.com/calendar/feeds/",
+                "https://docs.google.com/feeds/"]
+  }
+}