Modifications to layout test framework so that it can work with browser_tests.

Tools/Scripts/webkitpy/layout_tests/port/browser_test.py

 # Copyright (C) 2014 Google Inc. All rights reserved.
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 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
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 # in the documentation and/or other materials provided with the
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-#     * Neither the name of Google Inc. nor the names of its
+#     * Neither the Google name nor the names of its
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-
-def _CheckCodeMirrorChanges(input_api, output_api):
-    errorText = ("ERROR: Attempt to modify CodeMirror. The only allowed changes are "
-                 "rolls from the upstream (http://codemirror.net). If this is a roll, "
-                 "make sure you mention 'roll CodeMirror' (no quotes) in the change description.\n"
-                 "CodeMirror rolling instructions:\n"
-                 "    https://sites.google.com/a/chromium.org/devtools-codemirror-rolling")
-    changeDescription = input_api.change.DescriptionText()
-    errors = []
-    if not "roll codemirror" in changeDescription.lower():
-        errors.append(output_api.PresubmitError(errorText))
-    return errors
+from webkitpy.layout_tests.port import linux
+from webkitpy.layout_tests.port import mac
+from webkitpy.layout_tests.port import win
+from webkitpy.layout_tests.port import browser_test_driver
 
 
-def CheckChangeOnUpload(input_api, output_api):
-    results = []
-    results.extend(_CheckCodeMirrorChanges(input_api, output_api))
-    return results
+def get_port_class_name(port_name):
+    if 'linux' in port_name:
+        return 'BrowserTestLinuxPort'
+    elif 'mac' in port_name:
+        return 'BrowserTestMacPort'
+    elif 'win' in port_name:
+        return 'BrowserTestWinPort'
+    return None
+
+
+class BrowserTestPortOverrides(object):
+    """Set of overrides that every browser test platform port should have."""
+    def _driver_class(self):
+        return browser_test_driver.BrowserTestDriver
+
+    def layout_tests_dir(self):
+        """Overriden function from the base port class. Redirects everything
+        to src/chrome/test/data/printing/layout_tests.
+        """
+        return self.path_from_chromium_base('chrome', 'test', 'data', 'printing', 'layout_tests', 'tests')  # pylint: disable=E1101
+
+
+class BrowserTestLinuxPort(BrowserTestPortOverrides, linux.LinuxPort):
+    pass
+
+
+class BrowserTestMacPort(BrowserTestPortOverrides, mac.MacPort):
+    def _path_to_driver(self, configuration=None):
+        return self._build_path_with_configuration(configuration, self.driver_name())
+
+
+class BrowserTestWinPort(BrowserTestPortOverrides, win.WinPort):
+    pass