Convert isolate.py to exclusively use .isolate files.

net/net_unittests.isolate

+# 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.
+{
+  'variables': {
+    'isolate_dependency_tracked': [
+      '<(PRODUCT_DIR)/net_unittests<(EXECUTABLE_SUFFIX)',
+      '<(DEPTH)/testing/test_env.py',
+      '<(DEPTH)/third_party/pyftpdlib/src/pyftpdlib/__init__.py',
+      '<(DEPTH)/third_party/pyftpdlib/src/pyftpdlib/ftpserver.py',

[Ryan Sleevi, 2012/04/11 17:53:24]

Outside of the Chromium-Webkit-Port-In-Webkit, almost all of our GYP files use
relative paths, rather than <(DEPTH).

I seem to recall Mark specifically preferring them in a past CL - mark, am I
remembering correctly?

If you're trying to do this so that variables get properly absolutized, you
should just rename the variable so that it's treated as a pathspec - see
http://code.google.com/p/gyp/wiki/InputFormatReference#Pathname_Relativization

[M-A Ruel, 2012/04/11 18:22:29]

I don't mind much. I didn't realize DEPTH wasn't used anymore, I must be
sight-blind.

I replaced all DEPTH references with '..'. I haven't upgraded the tracing script
to use relative paths instead of DEPTH, I'll do it in a later change to not add
more complexity to this change.

+    ],
+    'isolate_dependency_untracked': [
+      'data/',
+      'tools/testserver/',
+      '<(DEPTH)/third_party/tlslite/tlslite/',
+    ],
+  },
+  'conditions': [
+    ['OS=="linux"', {
+      'variables': {
+        'isolate_dependency_tracked': [
+          '<(DEPTH)/testing/xvfb.py',
+          '<(PRODUCT_DIR)/xdisplaycheck<(EXECUTABLE_SUFFIX)',
+        ],
+        'command': [
+          '<(DEPTH)/testing/xvfb.py',
+          '<(PRODUCT_DIR)',
+          '<(PRODUCT_DIR)/net_unittests<(EXECUTABLE_SUFFIX)',
+        ],
+      },
+    }, {  # else
+      'variables': {
+        'command': [
+          '<(DEPTH)/testing/test_env.py',
+          '<(PRODUCT_DIR)/net_unittests<(EXECUTABLE_SUFFIX)',
+        ],
+      },
+    }],
+    ['OS=="win"', {
+      'variables': {
+        'isolate_dependency_tracked': [
+        ],
+      },
+    }],
+  ],
+}