Disable image_decoding_benchmark on android (and linux).

tools/perf/benchmarks/image_decoding.py

Index: tools/perf/benchmarks/image_decoding.py
diff --git a/tools/perf/benchmarks/image_decoding.py b/tools/perf/benchmarks/image_decoding.py
index 4b4f9fe0e078e58e7c9cd986075e77408cf51298..7acb5ddb3b4e557d7038caeeb26151c2bf6eeccc 100644
--- a/tools/perf/benchmarks/image_decoding.py
+++ b/tools/perf/benchmarks/image_decoding.py
@@ -1,6 +1,9 @@
 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
+
+import sys
+
 from telemetry import test
 
 from measurements import image_decoding
@@ -10,3 +13,6 @@ class ImageDecodingToughImageCases(test.Test):
   test = image_decoding.ImageDecoding
   # TODO: Rename this page set to tough_image_cases.json
   page_set = 'page_sets/image_decoding_measurement.json'
+
+  # crbug.com/323015
+  enabled = not sys.platform.startswith('linux')