[Sync] Add support for enabling session sync remotely.

net/tools/testserver/testserver.py

Index: net/tools/testserver/testserver.py
diff --git a/net/tools/testserver/testserver.py b/net/tools/testserver/testserver.py
index c079b4c514d72991832f582e7aa9a8dd761bbb15..5d27dbe82be98aedd60b99db5aacddc8b42bb669 100755
--- a/net/tools/testserver/testserver.py
+++ b/net/tools/testserver/testserver.py
@@ -1407,7 +1407,8 @@ class SyncPageHandler(BasePageHandler):
     get_handlers = [self.ChromiumSyncMigrationOpHandler,
                     self.ChromiumSyncTimeHandler,
                     self.ChromiumSyncBirthdayErrorOpHandler,
-                    self.ChromiumSyncTransientErrorOpHandler]
+                    self.ChromiumSyncTransientErrorOpHandler,
+                    self.ChromiumSyncSyncTabsOpHandler]
 
     post_handlers = [self.ChromiumSyncCommandHandler,
                      self.ChromiumSyncTimeHandler]
@@ -1495,6 +1496,18 @@ class SyncPageHandler(BasePageHandler):
     self.wfile.write(raw_reply)
     return True;
 
+  def ChromiumSyncSyncTabsOpHandler(self):
+    test_name = "/chromiumsync/synctabs"
+    if not self._ShouldHandleRequest(test_name):
+      return False
+    result, raw_reply = self.server._sync_handler.HandleSetSyncTabs()
+    self.send_response(result)
+    self.send_header('Content-Type', 'text/html')
+    self.send_header('Content-Length', len(raw_reply))
+    self.end_headers()
+    self.wfile.write(raw_reply)
+    return True;
+
 
 def MakeDataDir():
   if options.data_dir: