Rename all isolate_dependency_* to files.

build/isolate.gypi

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # This file is meant to be included into a target to provide a rule
 # to "build" .isolate files into a .isolated file.
 #
 # To use this, create a gyp target with the following form:
 # 'conditions': [
 #   ['test_isolation_mode != "noop"', {
 #     'targets': [
 #       {
 #         'target_name': 'foo_test_run',
 #         'type': 'none',
 #         'dependencies': [
 #           'foo_test',
 #         ],
 #         'includes': [
 #           '../build/isolate.gypi',
-#           'foo_test.isolate',
 #         ],
 #         'sources': [
 #           'foo_test.isolate',
 #         ],
 #       },
 #     ],
 #   }],
 # ],
 #
 # Note: foo_test.isolate is included and a source file. It is an inherent
@@ skipping 12 matching lines @@
   ],
   'rules': [
     {
       'rule_name': 'isolate',
       'extension': 'isolate',
       'inputs': [
         # Files that are known to be involved in this step.
         '<(DEPTH)/tools/isolate_driver.py',
         '<(DEPTH)/tools/swarming_client/isolate.py',
         '<(DEPTH)/tools/swarming_client/run_isolated.py',
-
-        # Disable file tracking by the build driver for now. This means the
-        # project must have the proper build-time dependency for their runtime
-        # dependency. This improves the runtime of the build driver since it
-        # doesn't have to stat() all these files.
-        #
-        # More importantly, it means that even if a isolate_dependency_tracked
-        # file is missing, for example if a file was deleted and the .isolate
-        # file was not updated, that won't break the build, especially in the
-        # case where foo_tests_run is not built! This should be reenabled once
-        # the switch-over to running tests on Swarm is completed.
-        #'<@(isolate_dependency_tracked)',
       ],
       'outputs': [],
       'action': [
         'python',
         '<(DEPTH)/tools/isolate_driver.py',
         '<(test_isolation_mode)',
         '--isolated', '<(PRODUCT_DIR)/<(RULE_INPUT_ROOT).isolated',
         '--isolate', '<(RULE_INPUT_PATH)',
 
         # Variables should use the -V FOO=<(FOO) form so frequent values,
@@ skipping 50 matching lines @@
           ],
         }, {
           'outputs': [
             '<(PRODUCT_DIR)/<(RULE_INPUT_ROOT).isolated',
           ],
         }],
       ],
     },
   ],
 }