Change PartitionAlloc to Chromium naming style.

third_party/WebKit/Source/core/paint/PaintLayer.cpp

Index: third_party/WebKit/Source/core/paint/PaintLayer.cpp
diff --git a/third_party/WebKit/Source/core/paint/PaintLayer.cpp b/third_party/WebKit/Source/core/paint/PaintLayer.cpp
index 02e2e26be245aaf48b24b8f9119182efa6c378ba..1d479119a7d130d7ed15256ea4f5bf9d39d8b261 100644
--- a/third_party/WebKit/Source/core/paint/PaintLayer.cpp
+++ b/third_party/WebKit/Source/core/paint/PaintLayer.cpp
@@ -1194,12 +1194,12 @@ LayoutRect PaintLayer::paintingExtent(const PaintLayer* rootLayer,
 }
 
 void* PaintLayer::operator new(size_t sz) {
-  return partitionAlloc(WTF::Partitions::layoutPartition(), sz,
+  return PartitionAlloc(WTF::Partitions::layoutPartition(), sz,
                         WTF_HEAP_PROFILER_TYPE_NAME(PaintLayer));
 }
 
 void PaintLayer::operator delete(void* ptr) {
-  WTF::partitionFree(ptr);
+  WTF::PartitionFree(ptr);
 }
 
 void PaintLayer::addChild(PaintLayer* child, PaintLayer* beforeChild) {