From 1bf1084f2b10c3b47fd1a588d85d21ed0eb41d0c Mon Sep 17 00:00:00 2001
From: Lorry Tar Creator <lorry-tar-importer@lorry>
Date: Tue, 27 Jun 2017 06:07:23 +0000
Subject: webkitgtk-2.16.5

---
 Source/WebKit2/Shared/WebRenderLayer.cpp | 34 +++++++++++++++++++++-----------
 1 file changed, 22 insertions(+), 12 deletions(-)

(limited to 'Source/WebKit2/Shared/WebRenderLayer.cpp')

diff --git a/Source/WebKit2/Shared/WebRenderLayer.cpp b/Source/WebKit2/Shared/WebRenderLayer.cpp
index f4baad331..9cc10eca4 100644
--- a/Source/WebKit2/Shared/WebRenderLayer.cpp
+++ b/Source/WebKit2/Shared/WebRenderLayer.cpp
@@ -32,9 +32,11 @@
 #include <WebCore/Frame.h>
 #include <WebCore/FrameLoader.h>
 #include <WebCore/FrameLoaderClient.h>
+#include <WebCore/MainFrame.h>
 #include <WebCore/RenderLayer.h>
 #include <WebCore/RenderLayerBacking.h>
 #include <WebCore/RenderView.h>
+#include <WebCore/RenderWidget.h>
 #include <WebCore/StyledElement.h>
 
 using namespace WebCore;
@@ -45,25 +47,25 @@ PassRefPtr<WebRenderLayer> WebRenderLayer::create(WebPage* page)
 {
     Frame* mainFrame = page->mainFrame();
     if (!mainFrame)
-        return 0;
+        return nullptr;
 
     if (!mainFrame->loader().client().hasHTMLView())
-        return 0;
+        return nullptr;
 
     RenderView* contentRenderer = mainFrame->contentRenderer();
     if (!contentRenderer)
-        return 0;
+        return nullptr;
 
     RenderLayer* rootLayer = contentRenderer->layer();
     if (!rootLayer)
-        return 0;
+        return nullptr;
 
     return adoptRef(new WebRenderLayer(rootLayer));
 }
 
-PassRefPtr<WebRenderLayer> WebRenderLayer::create(PassRefPtr<WebRenderObject> renderer, bool isReflection, bool isClipping, bool isClipped, CompositingLayerType type, WebCore::IntRect absoluteBoundingBox, PassRefPtr<API::Array> negativeZOrderList, PassRefPtr<API::Array> normalFlowList, PassRefPtr<API::Array> positiveZOrderList)
+PassRefPtr<WebRenderLayer> WebRenderLayer::create(PassRefPtr<WebRenderObject> renderer, bool isReflection, bool isClipping, bool isClipped, CompositingLayerType type, WebCore::IntRect absoluteBoundingBox, double backingStoreMemoryEstimate, PassRefPtr<API::Array> negativeZOrderList, PassRefPtr<API::Array> normalFlowList, PassRefPtr<API::Array> positiveZOrderList, PassRefPtr<WebRenderLayer> frameContentsLayer)
 {
-    return adoptRef(new WebRenderLayer(renderer, isReflection, isClipping, isClipped, type, absoluteBoundingBox, negativeZOrderList, normalFlowList, positiveZOrderList));
+    return adoptRef(new WebRenderLayer(renderer, isReflection, isClipping, isClipped, type, absoluteBoundingBox, backingStoreMemoryEstimate, negativeZOrderList, normalFlowList, positiveZOrderList, frameContentsLayer));
 }
 
 PassRefPtr<API::Array> WebRenderLayer::createArrayFromLayerList(Vector<RenderLayer*>* list)
@@ -77,7 +79,7 @@ PassRefPtr<API::Array> WebRenderLayer::createArrayFromLayerList(Vector<RenderLay
     for (const auto& layer : *list)
         layers.uncheckedAppend(adoptRef(new WebRenderLayer(layer)));
 
-    return API::Array::create(std::move(layers));
+    return API::Array::create(WTFMove(layers));
 }
 
 WebRenderLayer::WebRenderLayer(RenderLayer* layer)
@@ -85,7 +87,6 @@ WebRenderLayer::WebRenderLayer(RenderLayer* layer)
     m_renderer = WebRenderObject::create(&layer->renderer());
     m_isReflection = layer->isReflection();
 
-#if USE(ACCELERATED_COMPOSITING)
     if (layer->isComposited()) {
         RenderLayerBacking* backing = layer->backing();
         m_isClipping = backing->hasClippingLayer();
@@ -104,32 +105,41 @@ WebRenderLayer::WebRenderLayer(RenderLayer* layer)
             m_compositingLayerType = Container;
             break;
         }
+
+        m_backingStoreMemoryEstimate = backing->backingStoreMemoryEstimate();
     } else {
-#endif
         m_isClipping = false;
         m_isClipped = false;
         m_compositingLayerType = None;
-#if USE(ACCELERATED_COMPOSITING)
+        m_backingStoreMemoryEstimate = 0;
     }
-#endif
 
     m_absoluteBoundingBox = layer->absoluteBoundingBox();
 
     m_negativeZOrderList = createArrayFromLayerList(layer->negZOrderList());
     m_normalFlowList = createArrayFromLayerList(layer->normalFlowList());
     m_positiveZOrderList = createArrayFromLayerList(layer->posZOrderList());
+
+    if (is<RenderWidget>(layer->renderer())) {
+        if (Document* contentDocument = downcast<RenderWidget>(layer->renderer()).frameOwnerElement().contentDocument()) {
+            if (RenderView* view = contentDocument->renderView())
+                m_frameContentsLayer = adoptRef(new WebRenderLayer(view->layer()));
+        }
+    }
 }
 
-WebRenderLayer::WebRenderLayer(PassRefPtr<WebRenderObject> renderer, bool isReflection, bool isClipping, bool isClipped, CompositingLayerType type, WebCore::IntRect absoluteBoundingBox, PassRefPtr<API::Array> negativeZOrderList, PassRefPtr<API::Array> normalFlowList, PassRefPtr<API::Array> positiveZOrderList)
+WebRenderLayer::WebRenderLayer(PassRefPtr<WebRenderObject> renderer, bool isReflection, bool isClipping, bool isClipped, CompositingLayerType type, WebCore::IntRect absoluteBoundingBox, double backingStoreMemoryEstimate, PassRefPtr<API::Array> negativeZOrderList, PassRefPtr<API::Array> normalFlowList, PassRefPtr<API::Array> positiveZOrderList, PassRefPtr<WebRenderLayer> frameContentsLayer)
     : m_renderer(renderer)
     , m_isReflection(isReflection)
     , m_isClipping(isClipping)
     , m_isClipped(isClipped)
     , m_compositingLayerType(type)
     , m_absoluteBoundingBox(absoluteBoundingBox)
+    , m_backingStoreMemoryEstimate(backingStoreMemoryEstimate)
     , m_negativeZOrderList(negativeZOrderList)
     , m_normalFlowList(normalFlowList)
     , m_positiveZOrderList(positiveZOrderList)
+    , m_frameContentsLayer(frameContentsLayer)
 {
 }
 
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