Rename WebCore namespace to blink in Platform

Source/platform/geometry/FloatPolygonTest.cpp

Index: Source/platform/geometry/FloatPolygonTest.cpp
diff --git a/Source/platform/geometry/FloatPolygonTest.cpp b/Source/platform/geometry/FloatPolygonTest.cpp
index a3fa30ec504e484d785970b47de011dc172efeeb..4ff2936324b0d9b901375dda5dfc5943e1288cdc 100644
--- a/Source/platform/geometry/FloatPolygonTest.cpp
+++ b/Source/platform/geometry/FloatPolygonTest.cpp
@@ -33,7 +33,7 @@
 
 #include <gtest/gtest.h>
 
-namespace WebCore {
+namespace blink {
 
 class FloatPolygonTestValue {
 public:
@@ -52,11 +52,11 @@ private:
     OwnPtr<FloatPolygon> m_polygon;
 };
 
-} // namespace WebCore
+} // namespace blink
 
 namespace {
 
-using namespace WebCore;
+using namespace blink;
 
 static bool compareEdgeIndex(const FloatPolygonEdge* edge1, const FloatPolygonEdge* edge2)
 {