color: Add NSScreenColorSpaceDidChangeNotification observer

content/browser/renderer_host/render_widget_host_view_mac.mm

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/renderer_host/render_widget_host_view_mac.h"
 
 #import <Carbon/Carbon.h>
 #import <objc/runtime.h>
 #include <OpenGL/gl.h>
 #include <QuartzCore/QuartzCore.h>
@@ skipping 714 matching lines @@
 }
 
 RenderWidgetHostDelegate*
 RenderWidgetHostViewMac::GetFocusedRenderWidgetHostDelegate() {
   if (auto* focused_widget = GetFocusedWidget())
     return focused_widget->delegate();
   return render_widget_host_->delegate();
 }
 
 void RenderWidgetHostViewMac::UpdateBackingStoreProperties() {
-  if (!render_widget_host_)
-    return;
-  render_widget_host_->NotifyScreenInfoChanged();
+  UpdateScreenInfo(cocoa_view_);
+  // Update the ui::Compositor's color space here. The other display properties
+  // of the ui::Compositor are updated by frame metadata.
+  if (browser_compositor_)
+    browser_compositor_->SetDisplayColorSpace(current_display_color_space_);
 }
 
 RenderWidgetHost* RenderWidgetHostViewMac::GetRenderWidgetHost() const {
   return render_widget_host_;
 }
 
 void RenderWidgetHostViewMac::Show() {
   ScopedCAActionDisabler disabler;
   [cocoa_view_ setHidden:NO];
 
@@ skipping 985 matching lines @@
   if (display.id() != screen->GetDisplayNearestView(cocoa_view_).id())
     return;
 
   if (changed_metrics & DisplayObserver::DISPLAY_METRIC_DEVICE_SCALE_FACTOR) {
     RenderWidgetHostImpl* host =
         RenderWidgetHostImpl::From(GetRenderWidgetHost());
     if (host && host->delegate())
       host->delegate()->UpdateDeviceScaleFactor(display.device_scale_factor());
   }
 
-  UpdateScreenInfo(cocoa_view_);
+  UpdateBackingStoreProperties();
 }
 
 }  // namespace content
 
 // RenderWidgetHostViewCocoa ---------------------------------------------------
 
 @implementation RenderWidgetHostViewCocoa
 @synthesize selectedRange = selectedRange_;
 @synthesize suppressNextEscapeKeyUp = suppressNextEscapeKeyUp_;
 @synthesize markedRange = markedRange_;
@@ skipping 925 matching lines @@
   // Allocating a CGLayerRef with the current scale factor immediately from
   // this handler doesn't work. Schedule the backing store update on the
   // next runloop cycle, then things are read for CGLayerRef allocations to
   // work.
   [self performSelector:@selector(updateScreenProperties)
              withObject:nil
              afterDelay:0];
 }
 
 - (void)windowChangedGlobalFrame:(NSNotification*)notification {
-  renderWidgetHostView_->UpdateScreenInfo(
-      renderWidgetHostView_->GetNativeView());
+  renderWidgetHostView_->UpdateBackingStoreProperties();
 }
 
 - (void)setFrameSize:(NSSize)newSize {
   TRACE_EVENT0("browser", "RenderWidgetHostViewCocoa::setFrameSize");
 
   // NB: -[NSView setFrame:] calls through -setFrameSize:, so overriding
   // -setFrame: isn't neccessary.
   [super setFrameSize:newSize];
 
   if (!renderWidgetHostView_->render_widget_host_)
@@ skipping 635 matching lines @@
   if (hasOpenMouseDown_) {
     WebMouseEvent event(WebInputEvent::kMouseUp, WebInputEvent::kNoModifiers,
                         ui::EventTimeStampToSeconds(ui::EventTimeForNow()));
     event.button = WebMouseEvent::Button::kLeft;
     renderWidgetHostView_->ForwardMouseEvent(event);
 
     hasOpenMouseDown_ = NO;
   }
 }
 
-- (void)viewDidChangeBackingProperties {
-  NSScreen* screen = [[self window] screen];
-  if (screen) {
-    CGColorSpaceRef color_space = [[screen colorSpace] CGColorSpace];
-    // On Sierra, we need to operate in a single screen's color space because
-    // IOSurfaces do not opt-out of color correction.
-    // https://crbug.com/654488
-    if (base::mac::IsAtLeastOS10_12())
-      color_space = base::mac::GetSystemColorSpace();
-    gfx::ICCProfile icc_profile =
-        gfx::ICCProfile::FromCGColorSpace(color_space);
-    renderWidgetHostView_->browser_compositor_->SetDisplayColorSpace(
-        icc_profile.GetColorSpace());
-  }
-}
-
 - (void)undo:(id)sender {
   WebContents* web_contents = renderWidgetHostView_->GetWebContents();
   if (web_contents)
     web_contents->Undo();
 }
 
 - (void)redo:(id)sender {
   WebContents* web_contents = renderWidgetHostView_->GetWebContents();
   if (web_contents)
     web_contents->Redo();
@@ skipping 156 matching lines @@
 
 // "-webkit-app-region: drag | no-drag" is implemented on Mac by excluding
 // regions that are not draggable. (See ControlRegionView in
 // native_app_window_cocoa.mm). This requires the render host view to be
 // draggable by default.
 - (BOOL)mouseDownCanMoveWindow {
   return YES;
 }
 
 @end