[CT+DM] Change location of SKPs dir to outside checkouts.

BUG=skia:2545
TBR=phajdan

Review URL: https://codereview.chromium.org/1493913005

Cr-Commit-Position: refs/heads/master@{#363043}

chrome/ct_dm.isolate

@@ -10,7 +10,7 @@
           '../../skia/resources/',
           '../../skia/out/Debug/dm',
           '../content/test/ct/run_ct_dm.py',
-          '../content/test/ct/slave<(SLAVE_NUM)/skps/',
+          '../../skps/slave<(SLAVE_NUM)/',
         ],
         'command': [
           'python',

content/test/ct/OWNERS

+rmistry@chromium.org
+benjaminwagner@chromium.org
+borenet@chromium.org
+jcgregorio@chromium.org

content/test/ct/run_ct_dm.py

@@ -13,8 +13,10 @@ import sys
 
 PARENT_DIR = os.path.dirname(os.path.realpath(__file__))
 
-SKIA_SRC_DIR = os.path.normpath(os.path.join(
-    PARENT_DIR, os.pardir, os.pardir, os.pardir, os.pardir, 'skia'))
+REPOS_BASE_DIR = os.path.normpath(os.path.join(
+    PARENT_DIR, os.pardir, os.pardir, os.pardir, os.pardir))
+
+SKIA_SRC_DIR = os.path.join(REPOS_BASE_DIR, 'skia')
 
 
 def main():
@@ -24,7 +26,7 @@ def main():
   args = parser.parse_args()
 
   dm_path = os.path.join(SKIA_SRC_DIR, 'out', 'Debug', 'dm')
-  skps_dir = os.path.join(PARENT_DIR, 'slave%d' % args.slave_num, 'skps')
+  skps_dir = os.path.join(REPOS_BASE_DIR, 'skps', 'slave%d' % args.slave_num)
   resource_path = os.path.join(SKIA_SRC_DIR, 'resources')
 
   # TODO(rmistry): Double check the below DM configuration with mtklein@. We