cc::ResourcePool - Re-use larger resources for smaller requests

cc/base/switches.cc

 // Copyright (c) 2012 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.
 
 #include "cc/base/switches.h"
 
 #include "base/command_line.h"
 
 namespace cc {
 namespace switches {
@@ skipping 99 matching lines @@
 
 // Prevents the layer tree unit tests from timing out.
 const char kCCLayerTreeTestNoTimeout[] = "cc-layer-tree-test-no-timeout";
 
 // Increases timeout for memory checkers.
 const char kCCLayerTreeTestLongTimeout[] = "cc-layer-tree-test-long-timeout";
 
 // Makes pixel tests write their output instead of read it.
 const char kCCRebaselinePixeltests[] = "cc-rebaseline-pixeltests";
 
+// Disable re-use of non-exact resources to fulfill ResourcePool requests.
+// Intended only for use in layout tests to reduce noise.

[danakj, 2017/05/04 21:48:37]

it would apply to any pixel tests right? say we had UI pixel tests in the future
for instance..

[ericrk, 2017/05/05 23:18:38]

Yup, anywhere where we aren't doing fuzzy comparison (the changes are *very*
minor, so even a little bit of fuzz will allow them).

+const char kDisallowNonExactResourceReuse[] =
+    "disallow-non-exact-resource-reuse";
+
 }  // namespace switches
 }  // namespace cc