Remove XP and Vista bots from chromium.win and chromium.webkit waterfalls.

scripts/slave/recipes/chromium.expected/chromium_webkit_parent_revision_webkit.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "[BUILD]\\scripts\\slave\\kill_processes.py"
     ],
     "cwd": "[SLAVE_BUILD]",
     "name": "taskkill"
   },
   {
     "cmd": [
       "python",
       "-u",
       "[BUILD]\\scripts\\slave\\bot_update.py",
       "--master",
       "chromium.webkit",
       "--builder",
-      "WebKit XP",
+      "WebKit Win7",
       "--slave",
       "TestSlavename",
       "--spec",
       "cache_dir = None\nsolutions = [{'custom_vars': {'googlecode_url': 'svn://svn-mirror.golo.chromium.org/%s', 'nacl_trunk': 'svn://svn-mirror.golo.chromium.org/native_client/trunk', 'sourceforge_url': 'svn://svn-mirror.golo.chromium.org/%(repo)s', 'webkit_trunk': 'svn://svn-mirror.golo.chromium.org/blink/trunk'}, 'deps_file': 'DEPS', 'managed': True, 'name': 'src', 'url': 'svn://svn-mirror.golo.chromium.org/chrome/trunk/src'}]",
       "--root",
       "src",
       "--revision_mapping_file",
       "{\"src\": \"got_revision\", \"src/native_client\": \"got_nacl_revision\", \"src/third_party/angle\": \"got_angle_revision\", \"src/third_party/webrtc\": \"got_webrtc_revision\", \"src/tools/swarming_client\": \"got_swarming_client_revision\", \"src/v8\": \"got_v8_revision\"}",
       "--output_json",
       "/path/to/tmp/json",
@@ skipping 107 matching lines @@
       "-u",
       "[SLAVE_BUILD]\\src\\testing\\scripts\\get_compile_targets.py",
       "--output",
       "/path/to/tmp/json",
       "--",
       "--build-config-fs",
       "Release",
       "--paths",
       "{\"build\": \"[BUILD]\", \"checkout\": \"[SLAVE_BUILD]\\\\src\"}",
       "--properties",
-      "{\"buildername\": \"WebKit XP\", \"buildnumber\": 571, \"mastername\": \"chromium.webkit\", \"slavename\": \"TestSlavename\", \"target_platform\": \"win\"}"
+      "{\"buildername\": \"WebKit Win7\", \"buildnumber\": 571, \"mastername\": \"chromium.webkit\", \"slavename\": \"TestSlavename\", \"target_platform\": \"win\"}"
     ],
     "cwd": "[SLAVE_BUILD]",
     "name": "get compile targets for scripts",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{}@@@",
       "@@@STEP_LOG_END@json.output@@@"
     ]
   },
   {
     "cmd": [
@@ skipping 70 matching lines @@
     "name": "start_crash_service"
   },
   {
     "cmd": [
       "python",
       "-u",
       "[BUILD]\\scripts\\slave\\runtest.py",
       "--target",
       "Release",
       "--factory-properties",
-      "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"buildername\": \"WebKit XP\", \"buildnumber\": 571, \"mastername\": \"chromium.webkit\", \"parent_buildername\": \"WebKit Win Builder\", \"parent_got_revision\": \"7496f63cbefd34b2d791022fbad64a82838a3f3f\", \"parent_got_webkit_revision\": \"191275\", \"project\": \"webkit\", \"recipe\": \"chromium\", \"revision\": \"191275\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}",
+      "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"buildername\": \"WebKit Win7\", \"buildnumber\": 571, \"mastername\": \"chromium.webkit\", \"parent_buildername\": \"WebKit Win Builder\", \"parent_got_revision\": \"7496f63cbefd34b2d791022fbad64a82838a3f3f\", \"parent_got_webkit_revision\": \"191275\", \"project\": \"webkit\", \"recipe\": \"chromium\", \"revision\": \"191275\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}",
       "--build-properties",
-      "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"buildername\": \"WebKit XP\", \"buildnumber\": 571, \"mastername\": \"chromium.webkit\", \"parent_buildername\": \"WebKit Win Builder\", \"parent_got_revision\": \"7496f63cbefd34b2d791022fbad64a82838a3f3f\", \"parent_got_webkit_revision\": \"191275\", \"project\": \"webkit\", \"recipe\": \"chromium\", \"revision\": \"191275\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}",
+      "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"buildername\": \"WebKit Win7\", \"buildnumber\": 571, \"mastername\": \"chromium.webkit\", \"parent_buildername\": \"WebKit Win Builder\", \"parent_got_revision\": \"7496f63cbefd34b2d791022fbad64a82838a3f3f\", \"parent_got_webkit_revision\": \"191275\", \"project\": \"webkit\", \"recipe\": \"chromium\", \"revision\": \"191275\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}",
       "--step-name=webkit_tests",
-      "--builder-name=WebKit XP",
+      "--builder-name=WebKit Win7",
       "--slave-name=TestSlavename",
       "--build-number=571",
       "--run-python-script",
       "[BUILD]\\scripts\\slave\\chromium\\layout_test_wrapper.py",
       "--target",
       "Release",
       "-o",
       "[SLAVE_BUILD]\\layout-test-results",
       "--build-dir",
       "[SLAVE_BUILD]\\src\\out",
       "--json-test-results",
       "/path/to/tmp/json",
       "--test-results-server",
       "test-results.appspot.com",
       "--build-number",
       "571",
       "--builder-name",
-      "WebKit XP"
+      "WebKit Win7"
     ],
     "cwd": "[SLAVE_BUILD]",
     "name": "webkit_tests",
     "~followup_annotations": [
       "@@@STEP_TEXT@<br/>Total executed: 9001<br/>@@@"
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
       "[BUILD]\\scripts\\slave\\chromium\\archive_layout_test_results.py",
       "--results-dir",
       "[SLAVE_BUILD]\\layout-test-results",
       "--build-dir",
       "[SLAVE_BUILD]\\src\\out",
       "--build-number",
       "571",
       "--builder-name",
-      "WebKit XP",
+      "WebKit Win7",
       "--gs-bucket",
       "gs://chromium-layout-test-archives"
     ],
     "cwd": "[SLAVE_BUILD]",
     "name": "archive_webkit_tests_results",
     "~followup_annotations": [
-      "@@@STEP_LINK@layout_test_results@https://storage.googleapis.com/chromium-layout-test-archives/WebKit_XP/571/layout-test-results/results.html@@@",
-      "@@@STEP_LINK@(zip)@https://storage.googleapis.com/chromium-layout-test-archives/WebKit_XP/571/layout-test-results.zip@@@"
+      "@@@STEP_LINK@layout_test_results@https://storage.googleapis.com/chromium-layout-test-archives/WebKit_Win7/571/layout-test-results/results.html@@@",
+      "@@@STEP_LINK@(zip)@https://storage.googleapis.com/chromium-layout-test-archives/WebKit_Win7/571/layout-test-results.zip@@@"
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
       "[BUILD]\\scripts\\slave\\process_dumps.py",
       "--target",
       "Release"
     ],
     "cwd": "[SLAVE_BUILD]",
     "name": "process_dumps"
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]