Bug 1322079 - Add WebRenderBorderLayer. r=mattwoodrow

MozReview-Commit-ID: E6wHBxXX7Zp

gfx/layers/moz.build

@@ -378,6 +378,7 @@ UNIFIED_SOURCES += [
     'RenderTrace.cpp',
     'RotatedBuffer.cpp',
     'TextureWrapperImage.cpp',
+    'wr/WebRenderBorderLayer.cpp',
     'wr/WebRenderBridgeChild.cpp',
     'wr/WebRenderBridgeParent.cpp',
     'wr/WebRenderCanvasLayer.cpp',

gfx/layers/wr/WebRenderBorderLayer.cpp

@@ -0,0 +1,21 @@
+/* -*- Mode: C++; tab-width: 2; 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 "WebRenderBorderLayer.h"
+
+#include "LayersLogging.h"
+#include "mozilla/gfx/webrender.h"
+#include "mozilla/layers/WebRenderBridgeChild.h"
+
+namespace mozilla {
+namespace layers {
+
+void
+WebRenderBorderLayer::RenderLayer()
+{
+}
+
+} // namespace layers
+} // namespace mozilla

gfx/layers/wr/WebRenderBorderLayer.h

@@ -0,0 +1,38 @@
+/* -*- Mode: C++; tab-width: 2; 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/. */
+
+#ifndef GFX_WEBRENDERBORDERLAYER_H
+#define GFX_WEBRENDERBORDERLAYER_H
+
+#include "Layers.h"
+#include "WebRenderLayerManager.h"
+
+namespace mozilla {
+namespace layers {
+
+class WebRenderBorderLayer : public WebRenderLayer,
+                             public BorderLayer {
+public:
+  explicit WebRenderBorderLayer(WebRenderLayerManager* aLayerManager)
+    : BorderLayer(aLayerManager, static_cast<WebRenderLayer*>(this))
+  {
+    MOZ_COUNT_CTOR(WebRenderBorderLayer);
+  }
+
+protected:
+  virtual ~WebRenderBorderLayer()
+  {
+    MOZ_COUNT_DTOR(WebRenderBorderLayer);
+  }
+
+public:
+  Layer* GetLayer() override { return this; }
+  void RenderLayer() override;
+};
+
+} // namespace layers
+} // namespace mozilla
+
+#endif // GFX_WEBRENDERBORDERLAYER_H

gfx/layers/wr/WebRenderLayerManager.cpp

@@ -16,6 +16,7 @@
 #include "mozilla/widget/PlatformWidgetTypes.h"
 #include "nsThreadUtils.h"
 #include "TreeTraversal.h"
+#include "WebRenderBorderLayer.h"
 #include "WebRenderCanvasLayer.h"
 #include "WebRenderColorLayer.h"
 #include "WebRenderContainerLayer.h"
@@ -472,5 +473,11 @@ WebRenderLayerManager::CreateTextLayer()
   return nullptr;
 }
 
+already_AddRefed<BorderLayer>
+WebRenderLayerManager::CreateBorderLayer()
+{
+  return MakeAndAddRef<WebRenderBorderLayer>(this);
+}
+
 } // namespace layers
 } // namespace mozilla

gfx/layers/wr/WebRenderLayerManager.h

@@ -113,6 +113,7 @@ public:
   virtual already_AddRefed<ColorLayer> CreateColorLayer() override;
   virtual already_AddRefed<RefLayer> CreateRefLayer() override;
   virtual already_AddRefed<TextLayer> CreateTextLayer() override;
+  virtual already_AddRefed<BorderLayer> CreateBorderLayer() override;
 
   virtual bool NeedsWidgetInvalidation() override { return true; }