Remove base-* directories from gm expected/actual paths; just use platform names

buildbot/slave/skia_slave_scripts/compare_and_upload_webpage_gms.py

Index: buildbot/slave/skia_slave_scripts/compare_and_upload_webpage_gms.py
===================================================================
--- buildbot/slave/skia_slave_scripts/compare_and_upload_webpage_gms.py	(revision 10693)
+++ buildbot/slave/skia_slave_scripts/compare_and_upload_webpage_gms.py	(working copy)
@@ -18,7 +18,7 @@
 --autogen_svn_baseurl "" --make_flags "" --test_args "" --gm_args "" \
 --bench_args "" --num_cores 8 --perf_output_basedir "" \
 --builder_name Test-Ubuntu12-ShuttleA-ATI5770-x86_64-Release \
---got_revision 0 --gm_image_subdir base-shuttle_ubuntu12_ati5770 \
+--got_revision 0 \
 --is_try False --do_upload_results True --dest_gsbase gs://rmistry
 
 """
@@ -51,14 +51,7 @@
   'found in baseDir and not found in comparisonDir',
 ]
 
-IMAGES_FOR_UPLOAD_CHUNKS = [
-  'base-macmini',
-  'base-macmini-lion-float',
-  'base-macmini-10_8',
-  'base-shuttle_ubuntu12_ati5770',
-]
 
-
 class CompareAndUploadWebpageGMs(BuildStep):
 
   def __init__(
@@ -82,9 +75,7 @@
     self._dest_gsbase = (self._args.get('dest_gsbase') or
                          sync_bucket_subdir.DEFAULT_PERFDATA_GS_BASE)
 
-    self._upload_chunks = (
-        True if self._gm_image_subdir in IMAGES_FOR_UPLOAD_CHUNKS
-             else False)
+    self._upload_chunks = True
 
     # Check if gm-expected exists on Google Storage.
     self._gm_expected_exists_on_storage = gs_utils.DoesStorageObjectExist(