[WIP] cc: Use sRGB for rastering non-wide-color-gamut content

cc/paint/display_item_list.cc

Index: cc/paint/display_item_list.cc
diff --git a/cc/paint/display_item_list.cc b/cc/paint/display_item_list.cc
index 88e11106bacfca1789eaefb3de1ed9f925ace7ac..fd75ecbe35b149bd2c3a4818f44392338cd06725 100644
--- a/cc/paint/display_item_list.cc
+++ b/cc/paint/display_item_list.cc
@@ -336,6 +336,10 @@ bool DisplayItemList::ShouldBeAnalyzedForSolidColor() const {
   return ApproximateOpCount() <= kOpCountThatIsOkToAnalyze;
 }
 
+bool DisplayItemList::HasNonSRGBContent() const {
+  return image_map_.has_non_srgb_images();

[vmpstr, 2017/05/09 22:58:27]

One thing to note (and I think we're pretty far down this patch), but the whole
discardable image caching in the compositor only cares about lazy images. Things
like bitmaps and I think ico files just get passed through. I'm assuming those
don't specify an image space or we don't care?

+}
+
 void DisplayItemList::EmitTraceSnapshot() const {
   bool include_items;
   TRACE_EVENT_CATEGORY_GROUP_ENABLED(