Remove XP port from Blink LayoutTest related scripts.

third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base.py

Index: third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base.py
diff --git a/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base.py b/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base.py
index c9e3e12c8b5d19b874414cf72e13c0f34927657a..104a311133982cae22c3ebe82ebeebe524f08584 100644
--- a/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base.py
+++ b/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base.py
@@ -103,7 +103,6 @@ class Port(object):
         ('mountainlion', 'x86'),
         ('mavericks', 'x86'),
         ('mac10.10', 'x86'),
-        ('xp', 'x86'),
         ('win7', 'x86'),
         ('win10', 'x86'),
         # FIXME: We handle 32bit Linux similarly to Mac retina above treating it
@@ -116,15 +115,9 @@ class Port(object):
         ('icecreamsandwich', 'x86'),
         )
 
-    ALL_BASELINE_VARIANTS = [
-        'mac-mac10.10', 'mac-mavericks', 'mac-retina', 'mac-mountainlion', 'mac-lion', 'mac-snowleopard',
-        'win-win10', 'win-win7', 'win-xp'
-        'linux-trusty', 'linux-precise', 'linux-x86',
-    ]
-
     CONFIGURATION_SPECIFIER_MACROS = {
         'mac': ['snowleopard', 'lion', 'mountainlion', 'retina', 'mavericks', 'mac10.10'],
-        'win': ['xp', 'win7', 'win10'],
+        'win': ['win7', 'win10'],
         'linux': ['linux32', 'precise', 'trusty'],
         'android': ['icecreamsandwich'],
     }
@@ -226,6 +219,9 @@ class Port(object):
         self._results_directory = None
         self._virtual_test_suites = None
 
+    def __str__(self):
+        return "Port{name=%s, version=%s, architecture=%s, test_configuration=%s}" % (self._name, self._version, self._architecture, self._test_configuration)
+
     def buildbot_archives_baselines(self):
         return True
 
@@ -984,7 +980,7 @@ class Port(object):
 
     def version(self):
         """Returns a string indicating the version of a given platform, e.g.
-        'leopard' or 'xp'.
+        'leopard' or 'win7'.
 
         This is used to help identify the exact port when parsing test
         expectations, determining search paths, and logging information."""
@@ -1260,21 +1256,13 @@ class Port(object):
         """Ports may provide a way to abbreviate configuration specifiers to conveniently
         refer to them as one term or alias specific values to more generic ones. For example:
 
-        (xp, vista, win7) -> win # Abbreviate all Windows versions into one namesake.
+        (vista, win7) -> win # Abbreviate all Windows versions into one namesake.
         (precise, trusty) -> linux  # Change specific name of Linux distro to a more generic term.
 
         Returns a dictionary, each key representing a macro term ('win', for example),
-        and value being a list of valid configuration specifiers (such as ['xp', 'vista', 'win7'])."""
+        and value being a list of valid configuration specifiers (such as ['vista', 'win7'])."""
         return self.CONFIGURATION_SPECIFIER_MACROS
 
-    def all_baseline_variants(self):
-        """Returns a list of platform names sufficient to cover all the baselines.
-
-        The list should be sorted so that a later platform  will reuse
-        an earlier platform's baselines if they are the same (e.g.,
-        'mac10.10' should precede 'mac10.9')."""
-        return self.ALL_BASELINE_VARIANTS
-
     def _generate_all_test_configurations(self):
         """Returns a sequence of the TestConfigurations the port supports."""
         # By default, we assume we want to test every graphics type in