Index: third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp |
diff --git a/third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp b/third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp |
index 6da762ae5c812bafc5220e027c91f8b02def466e..acec3ea2035b149117486d0ab9e4e5806cfb4c77 100644 |
--- a/third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp |
+++ b/third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp |
@@ -453,8 +453,21 @@ class PropertyTreeManager { |
}; |
void PropertyTreeManager::setDeviceScaleFactor(float deviceScaleFactor) { |
- auto& rootTransformNode = *transformTree().Node(kSecondaryRootNodeId); |
- rootTransformNode.local.Scale(deviceScaleFactor, deviceScaleFactor); |
+ auto& rootTransformNode = *transformTree().Node(kRealRootNodeId); |
+ rootTransformNode.needs_surface_contents_scale = true; |
+ rootTransformNode.surface_contents_scale = |
+ gfx::Vector2dF(deviceScaleFactor, deviceScaleFactor); |
+ // TODO(jaydasika) : We shouldn't set ToScreen and FromScreen of root |
+ // transform node here. They should be set while updating transform tree in |
+ // cc. |
+ gfx::Transform toScreen; |
+ toScreen.Scale(deviceScaleFactor, deviceScaleFactor); |
+ transformTree().SetToScreen(rootTransformNode.id, toScreen); |
+ gfx::Transform fromScreen; |
+ if (!toScreen.GetInverse(&fromScreen)) |
+ rootTransformNode.ancestors_are_invertible = false; |
+ transformTree().SetFromScreen(rootTransformNode.id, fromScreen); |
+ transformTree().set_needs_update(true); |
} |
int PropertyTreeManager::compositorIdForTransformNode( |