diff -r 000000000000 -r 6474c204b198 gfx/layers/composite/ColorLayerComposite.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/layers/composite/ColorLayerComposite.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,52 @@
+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "ColorLayerComposite.h"
+#include "gfxColor.h"                   // for gfxRGBA
+#include "mozilla/RefPtr.h"             // for RefPtr
+#include "mozilla/gfx/Matrix.h"         // for Matrix4x4
+#include "mozilla/gfx/Point.h"          // for Point
+#include "mozilla/gfx/Rect.h"           // for Rect
+#include "mozilla/gfx/Types.h"          // for Color
+#include "mozilla/layers/Compositor.h"  // for Compositor
+#include "mozilla/layers/CompositorTypes.h"  // for DIAGNOSTIC_COLOR
+#include "mozilla/layers/Effects.h"     // for Effect, EffectChain, etc
+#include "mozilla/mozalloc.h"           // for operator delete, etc
+#include "nsPoint.h"                    // for nsIntPoint
+#include "nsRect.h"                     // for nsIntRect
+
+namespace mozilla {
+namespace layers {
+
+void
+ColorLayerComposite::RenderLayer(const nsIntRect& aClipRect)
+{
+  EffectChain effects(this);
+  gfxRGBA color(GetColor());
+  effects.mPrimaryEffect = new EffectSolidColor(gfx::Color(color.r,
+                                                           color.g,
+                                                           color.b,
+                                                           color.a));
+  nsIntRect boundRect = GetBounds();
+
+  LayerManagerComposite::AutoAddMaskEffect autoMaskEffect(GetMaskLayer(),
+                                                          effects);
+
+  gfx::Rect rect(boundRect.x, boundRect.y,
+                 boundRect.width, boundRect.height);
+  gfx::Rect clipRect(aClipRect.x, aClipRect.y,
+                     aClipRect.width, aClipRect.height);
+
+  float opacity = GetEffectiveOpacity();
+
+  const gfx::Matrix4x4& transform = GetEffectiveTransform();
+  mCompositor->DrawQuad(rect, clipRect, effects, opacity, transform);
+  mCompositor->DrawDiagnostics(DIAGNOSTIC_COLOR,
+                               rect, clipRect,
+                               transform);
+}
+
+} /* layers */
+} /* mozilla */