Display linear-srgb color managed canvas

cc/trees/layer_tree_impl.cc

 // Copyright 2011 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 "cc/trees/layer_tree_impl.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 70 matching lines @@
       needs_update_draw_properties_(true),
       needs_full_tree_sync_(true),
       next_activation_forces_redraw_(false),
       has_ever_been_drawn_(false),
       have_scroll_event_handlers_(false),
       event_listener_properties_(),
       browser_controls_shrink_blink_size_(false),
       top_controls_height_(0),
       bottom_controls_height_(0),
       top_controls_shown_ratio_(top_controls_shown_ratio) {
+  if (layer_tree_host_impl_->settings().enable_color_correct_rendering)
+    device_color_space_ = gfx::ColorSpace::CreateSRGB();
   property_trees()->is_main_thread = false;
 }
 
 LayerTreeImpl::~LayerTreeImpl() {
   BreakSwapPromises(IsActiveTree() ? SwapPromise::SWAP_FAILS
                                    : SwapPromise::ACTIVATION_FAILS);
 
   // Need to explicitly clear the tree prior to destroying this so that
   // the LayerTreeImpl pointer is still valid in the LayerImpl dtor.
   DCHECK(LayerListIsEmpty());
@@ skipping 764 matching lines @@
   set_needs_update_draw_properties();
   if (IsActiveTree())
     layer_tree_host_impl_->SetFullViewportDamage();
   layer_tree_host_impl_->SetNeedUpdateGpuRasterizationStatus();
 }
 
 void LayerTreeImpl::SetDeviceColorSpace(
     const gfx::ColorSpace& device_color_space) {
   if (device_color_space == device_color_space_)
     return;
+
+  // If color correct rendering is enabled, the default color space must be
+  // SRGB.
+  if (layer_tree_host_impl_->settings().enable_color_correct_rendering &&
+      device_color_space == gfx::ColorSpace()) {
+    device_color_space_ = gfx::ColorSpace::CreateSRGB();
+    return;
+  }
+
   device_color_space_ = device_color_space;
 }
 
 SyncedProperty<ScaleGroup>* LayerTreeImpl::page_scale_factor() {
   return page_scale_factor_.get();
 }
 
 const SyncedProperty<ScaleGroup>* LayerTreeImpl::page_scale_factor() const {
   return page_scale_factor_.get();
 }
@@ skipping 1188 matching lines @@
 
 void LayerTreeImpl::ResetAllChangeTracking() {
   layers_that_should_push_properties_.clear();
   // Iterate over all layers, including masks.
   for (auto& layer : *layers_)
     layer->ResetChangeTracking();
   property_trees_.ResetAllChangeTracking();
 }
 
 }  // namespace cc