Remove use-monitor-color-space flag

This CL removes the flag to disable this feature, since it
has been in Beta 66.0.3359.30 without any major problems
so far.

Bug: 771345
Change-Id: I7283cc05ded90ca3ec24ba227fc80654ad5f3325
Reviewed-on: https://chromium-review.googlesource.com/912016Reviewed-by: Avi Drissman <avi@chromium.org>
Commit-Queue: Miguel Casas <mcasas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#544122}

chrome/browser/about_flags.cc

@@ -3124,10 +3124,6 @@ const FeatureEntry kFeatureEntries[] = {
      MULTI_VALUE_TYPE(kForceColorProfileChoices)},
 
 #if defined(OS_CHROMEOS)
-    {"use-monitor-color-space", flag_descriptions::kUseMonitorColorSpaceName,
-     flag_descriptions::kUseMonitorColorSpaceDescription, kOsCrOS,
-     FEATURE_VALUE_TYPE(features::kUseMonitorColorSpace)},
-
     {"quick-unlock-pin-signin", flag_descriptions::kQuickUnlockPinSignin,
      flag_descriptions::kQuickUnlockPinSigninDescription, kOsCrOS,
      FEATURE_VALUE_TYPE(features::kQuickUnlockPinSignin)},

ui/display/display_switches.cc

@@ -64,11 +64,4 @@ namespace features {
 const base::Feature kHighDynamicRange{"HighDynamicRange",
                                       base::FEATURE_ENABLED_BY_DEFAULT};
 
-#if defined(OS_CHROMEOS)
-// Enables using the monitor's provided color space information when rendering.
-// TODO(mcasas): remove this flag http://crbug.com/771345.
-const base::Feature kUseMonitorColorSpace{"UseMonitorColorSpace",
-                                          base::FEATURE_ENABLED_BY_DEFAULT};
-#endif
-
 }  // namespace features

ui/display/display_switches.h

@@ -34,10 +34,6 @@ namespace features {
 
 DISPLAY_EXPORT extern const base::Feature kHighDynamicRange;
 
-#if defined(OS_CHROMEOS)
-DISPLAY_EXPORT extern const base::Feature kUseMonitorColorSpace;
-#endif
-
 }  // namespace features
 
 #endif  // UI_DISPLAY_DISPLAY_SWITCHES_H_

ui/display/manager/display_manager.cc

@@ -2037,13 +2037,8 @@ Display DisplayManager::CreateDisplayFromDisplayInfoById(int64_t id) {
   new_display.set_rotation(display_info.GetActiveRotation());
   new_display.set_touch_support(display_info.touch_support());
   new_display.set_maximum_cursor_size(display_info.maximum_cursor_size());
-#if defined(OS_CHROMEOS)
-  // TODO(mcasas): remove this check, http://crbug.com/771345.
-  if (base::FeatureList::IsEnabled(features::kUseMonitorColorSpace))
+  if (!Display::HasForceColorProfile())
     new_display.set_color_space(display_info.color_space());
-#else
-  new_display.set_color_space(display_info.color_space());
-#endif
 
   if (internal_display_has_accelerometer_ && Display::IsInternalDisplayId(id)) {
     new_display.set_accelerometer_support(