Implement High Contrast mode for Chrome OS

ui/compositor/layer.cc

Index: ui/compositor/layer.cc
diff --git a/ui/compositor/layer.cc b/ui/compositor/layer.cc
index ae2085fe7b641e10f509d2f52c43980d5cf2d38a..dbf55d14e365c539c986a61cf8eee51fc1296681 100644
--- a/ui/compositor/layer.cc
+++ b/ui/compositor/layer.cc
@@ -52,6 +52,7 @@ Layer::Layer()
       fills_bounds_opaquely_(true),
       layer_updated_externally_(false),
       opacity_(1.0f),
+      invert_(false),
       delegate_(NULL),
       scale_canvas_(true),
       device_scale_factor_(1.0f) {
@@ -205,6 +206,19 @@ void Layer::SetBackgroundBlur(int blur_radius)
   background_blur_radius_ = blur_radius;
 }
 
+void Layer::SetInvert(bool invert)
+{

[sky, 2012/05/16 21:07:48]

{ on previous line

[Zachary Kuznia, 2012/05/17 08:25:25]

Done.

+  WebKit::WebFilterOperations filters;
+  if (invert) {
+    filters.append(WebKit::WebBasicComponentTransferFilterOperation(
+        WebKit::WebBasicComponentTransferFilterOperation::
+            BasicComponentTransferFilterTypeInvert, 1.0));
+  }
+  web_layer_.setFilters(filters);
+
+  invert_ = invert;
+}
+
 float Layer::GetTargetOpacity() const {
   if (animator_.get() && animator_->IsAnimatingProperty(
       LayerAnimationElement::OPACITY))