Add --enable-hdr to about:flags

chrome/browser/flag_descriptions.cc

Index: chrome/browser/flag_descriptions.cc
diff --git a/chrome/browser/flag_descriptions.cc b/chrome/browser/flag_descriptions.cc
index cdf91c1ecee2a8e1ec194a888901f00b91277410..1ee95957149fc50bdbe21324d3c6185e15807c7a 100644
--- a/chrome/browser/flag_descriptions.cc
+++ b/chrome/browser/flag_descriptions.cc
@@ -945,6 +945,11 @@ const char kAcceleratedVideoDecodeName[] = "Hardware-accelerated video decode";
 const char kAcceleratedVideoDecodeDescription[] =
     "Hardware-accelerated video decode where available.";
 
+const char kEnableHDRName[] = "HDR Mode";

[ccameron, 2017/03/28 19:46:35]

I'd prefer calling it something like "HDR support" as opposed to HDR mode". Nit
for style: only first word should be capitalized.

[hubbe, 2017/03/29 21:14:26]

I really think "mode" is the right word, since it affects how everything is
rendered in chrome. "HDR support" just sounds like adding something on.

+
+const char kEnableHDRDescription[] =
+    "Enables full HDR support on HDR-compatible displays.";

[ccameron, 2017/03/28 19:46:35]

Nit: "Enables HDR support on compatible displays."

[hubbe, 2017/03/29 21:14:26]

Done. (I blame my PM for the wording..)

+
 const char kCloudImport[] = "Cloud Import";
 
 const char kCloudImportDescription[] = "Allows the cloud-import feature.";