Flag off PIP rounded corners by default.

Bug: 923812
Test: Rounded corners no longer used for PIP windows.
Change-Id: Id2a09865d05ed1f51fb5a1ee6645db0bcf59f4e4
Reviewed-on: https://chromium-review.googlesource.com/c/1424107
Reviewed-by: Mitsuru Oshima <oshima@chromium.org>
Commit-Queue: Eliot Courtney <edcourtney@chromium.org>
Cr-Commit-Position: refs/heads/master@{#625489}
diff --git a/ash/public/cpp/ash_features.cc b/ash/public/cpp/ash_features.cc
index d6898fa..8e98036 100644
--- a/ash/public/cpp/ash_features.cc
+++ b/ash/public/cpp/ash_features.cc
@@ -38,7 +38,7 @@
                                            base::FEATURE_DISABLED_BY_DEFAULT};
 
 const base::Feature kPipRoundedCorners{"PipRoundedCorners",
-                                       base::FEATURE_ENABLED_BY_DEFAULT};
+                                       base::FEATURE_DISABLED_BY_DEFAULT};
 
 const base::Feature kSeparateNetworkIcons{"SeparateNetworkIcons",
                                           base::FEATURE_DISABLED_BY_DEFAULT};