Enable display cutout for WebView by default

Bug: 1094366
Change-Id: I6774cc67767b7decc3aa04cf32a81190a9e3f288
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2392745Reviewed-by: Bo <boliu@chromium.org>
Commit-Queue: Changwan Ryu <changwan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#834103}

android_webview/common/aw_features.cc

@@ -26,7 +26,7 @@ const base::Feature kWebViewCpuAffinityRestrictToLittleCores{
 
 // Enable display cutout support for Android P and above.
 const base::Feature kWebViewDisplayCutout{"WebViewDisplayCutout",
-                                          base::FEATURE_DISABLED_BY_DEFAULT};
+                                          base::FEATURE_ENABLED_BY_DEFAULT};
 
 // When enabled, passive mixed content (Audio/Video/Image subresources loaded
 // over HTTP on HTTPS sites) will be autoupgraded to HTTPS, and the load will be