Rename WebCore namespace to blink in Platform

Source/platform/geometry/FloatRoundedRectTest.cpp

Index: Source/platform/geometry/FloatRoundedRectTest.cpp
diff --git a/Source/platform/geometry/FloatRoundedRectTest.cpp b/Source/platform/geometry/FloatRoundedRectTest.cpp
index aeb0292a5f34244df8b8b546fa6658742de99cba..10e5d1b82b0df280e7cad5df780487df5f15bc30 100644
--- a/Source/platform/geometry/FloatRoundedRectTest.cpp
+++ b/Source/platform/geometry/FloatRoundedRectTest.cpp
@@ -33,9 +33,9 @@
 
 #include <gtest/gtest.h>
 
-using namespace WebCore;
+using namespace blink;
 
-namespace WebCore {
+namespace blink {
 
 void PrintTo(const FloatSize& size, std::ostream* os)
 {
@@ -69,7 +69,7 @@ void PrintTo(const FloatRoundedRect& roundedRect, std::ostream* os)
         << ::testing::PrintToString(roundedRect.radii()) << ")";
 }
 
-} // namespace WebCore
+} // namespace blink
 
 namespace {