Bug 1309081 - Initialize image layer as part of Gecko_EnsureImageLayersLength. r=manishearth

MozReview-Commit-ID: 4MszPafvcKs

layout/style/ServoBindings.cpp

@@ -802,16 +802,16 @@ Gecko_CopyStyleContentsFrom(nsStyleContent* aContent, const nsStyleContent* aOth
 }
 
 void
-Gecko_EnsureImageLayersLength(nsStyleImageLayers* aLayers, size_t aLen)
+Gecko_EnsureImageLayersLength(nsStyleImageLayers* aLayers, size_t aLen,
+                              nsStyleImageLayers::LayerType aLayerType)
 {
-  aLayers->mLayers.EnsureLengthAtLeast(aLen);
+  size_t oldLength = aLayers->mLayers.Length();
-}
 
-void
+  aLayers->mLayers.EnsureLengthAtLeast(aLen);
-Gecko_InitializeImageLayer(nsStyleImageLayers::Layer* aLayer,
+
-                                nsStyleImageLayers::LayerType aLayerType)
+  for (size_t i = oldLength; i < aLen; ++i) {
-{
+    aLayers->mLayers[i].Initialize(aLayerType);
-  aLayer->Initialize(aLayerType);
+  }
 }
 
 void

layout/style/ServoBindings.h

@@ -300,10 +300,8 @@ void Gecko_ClearPODTArray(void* array, size_t elem_size, size_t elem_align);
 void Gecko_ClearStyleContents(nsStyleContent* content);
 void Gecko_CopyStyleContentsFrom(nsStyleContent* content, const nsStyleContent* other);
 
-void Gecko_EnsureImageLayersLength(nsStyleImageLayers* layers, size_t len);
+void Gecko_EnsureImageLayersLength(nsStyleImageLayers* layers, size_t len,
-
+                                   nsStyleImageLayers::LayerType layer_type);
-void Gecko_InitializeImageLayer(nsStyleImageLayers::Layer* layer,
-                                nsStyleImageLayers::LayerType layer_type);
 
 // Clean up pointer-based coordinates
 void Gecko_ResetStyleCoord(nsStyleUnit* unit, nsStyleUnion* value);