Remove flag for HDR

This has been enabled for a long time.

Change-Id: I643207a25a4b8d0a769b6ab654a97ea6482400bf
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1606481
Commit-Queue: ccameron <ccameron@chromium.org>
Reviewed-by: Antoine Labour <piman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#661168}

chrome/browser/about_flags.cc

@@ -1299,11 +1299,6 @@ const FeatureEntry kFeatureEntries[] = {
         kOsMac | kOsWin | kOsCrOS | kOsAndroid,
         SINGLE_DISABLE_VALUE_TYPE(switches::kDisableAcceleratedVideoDecode),
     },
-#if defined(OS_WIN)
-    {"enable-hdr", flag_descriptions::kEnableHDRName,
-     flag_descriptions::kEnableHDRDescription, kOsWin,
-     FEATURE_VALUE_TYPE(display::features::kHighDynamicRange)},
-#endif  // OS_WIN
 #if defined(OS_CHROMEOS)
     {
         "ash-debug-shortcuts",

chrome/browser/flag-metadata.json

@@ -1118,11 +1118,6 @@
     // way to turn off graphics features.
     "expiry_milestone": -1
   },
-  {
-    "name": "enable-hdr",
-    // "owners": [ "your-team" ],
-    "expiry_milestone": 76
-  },
   {
     "name": "enable-hide-arc-media-notifications",
     "owners": [ "beccahughes", "media-dev" ],

chrome/browser/flag_descriptions.cc

@@ -573,10 +573,6 @@ const char kEnableGpuServiceLoggingName[] = "Enable gpu service logging";
 const char kEnableGpuServiceLoggingDescription[] =
     "Enable printing the actual GL driver calls.";
 
-const char kEnableHDRName[] = "HDR mode";
-const char kEnableHDRDescription[] =
-    "Enables HDR support on compatible displays.";
-
 const char kEnableImplicitRootScrollerName[] = "Implicit Root Scroller";
 const char kEnableImplicitRootScrollerDescription[] =
     "Enables implicitly choosing which scroller on a page is the 'root "

chrome/browser/flag_descriptions.h

@@ -362,9 +362,6 @@ extern const char kEnableGenericSensorExtraClassesDescription[];
 extern const char kEnableGpuServiceLoggingName[];
 extern const char kEnableGpuServiceLoggingDescription[];
 
-extern const char kEnableHDRName[];
-extern const char kEnableHDRDescription[];
-
 extern const char kEnableImplicitRootScrollerName[];
 extern const char kEnableImplicitRootScrollerDescription[];
 

content/browser/browser_main_loop.cc

@@ -1308,8 +1308,7 @@ int BrowserMainLoop::BrowserThreadsStarted() {
   }
 
 #if defined(OS_WIN)
-  if (base::FeatureList::IsEnabled(display::features::kHighDynamicRange))
-    HDRProxy::Initialize();
+  HDRProxy::Initialize();
   system_message_window_.reset(new media::SystemMessageWindowWin);
 #elif defined(OS_LINUX) && defined(USE_UDEV)
   device_monitor_linux_ = std::make_unique<media::DeviceMonitorLinux>();

ui/display/display_features.cc

@@ -7,9 +7,6 @@
 namespace display {
 namespace features {
 
-const base::Feature kHighDynamicRange{"HighDynamicRange",
-                                      base::FEATURE_ENABLED_BY_DEFAULT};
-
 // This features allows listing all display modes of external displays in the
 // display settings and setting any one of them exactly as requested, which can
 // be very useful for debugging and development purposes.

ui/display/display_features.h

@@ -11,8 +11,6 @@
 namespace display {
 namespace features {
 
-DISPLAY_EXPORT extern const base::Feature kHighDynamicRange;
-
 #if defined(OS_CHROMEOS)
 DISPLAY_EXPORT extern const base::Feature kUseMonitorColorSpace;
 #endif