diff -r 000000000000 -r 6474c204b198 gfx/layers/Effects.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/layers/Effects.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,56 @@
+/* -*- 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 "Effects.h"
+#include "LayersLogging.h"              // for AppendToString
+#include "nsAString.h"
+#include "nsPrintfCString.h"            // for nsPrintfCString
+#include "nsString.h"                   // for nsAutoCString
+
+using namespace mozilla::layers;
+
+void
+TexturedEffect::PrintInfo(nsACString& aTo, const char* aPrefix)
+{
+  aTo += aPrefix;
+  aTo += nsPrintfCString("%s (0x%p)", Name(), this);
+  AppendToString(aTo, mTextureCoords, " [texture-coords=", "]");
+
+  if (mPremultiplied) {
+    aTo += " [premultiplied]";
+  } else {
+    aTo += " [not-premultiplied]";
+  }
+
+  AppendToString(aTo, mFilter, " [filter=", "]");
+}
+
+void
+EffectMask::PrintInfo(nsACString& aTo, const char* aPrefix)
+{
+  aTo += aPrefix;
+  aTo += nsPrintfCString("EffectMask (0x%p)", this);
+  AppendToString(aTo, mSize, " [size=", "]");
+  AppendToString(aTo, mMaskTransform, " [mask-transform=", "]");
+
+  if (mIs3D) {
+    aTo += " [is-3d]";
+  }
+}
+
+void
+EffectRenderTarget::PrintInfo(nsACString& aTo, const char* aPrefix)
+{
+  TexturedEffect::PrintInfo(aTo, aPrefix);
+  aTo += nsPrintfCString(" [render-target=%p]", mRenderTarget.get());
+}
+
+void
+EffectSolidColor::PrintInfo(nsACString& aTo, const char* aPrefix)
+{
+  aTo += aPrefix;
+  aTo += nsPrintfCString("EffectSolidColor (0x%p) [color=%x]", this, mColor.ToABGR());
+}
+