Rename WebCore namespace to blink in Platform

Source/platform/geometry/FloatBoxTestHelpers.h

Index: Source/platform/geometry/FloatBoxTestHelpers.h
diff --git a/Source/platform/geometry/FloatBoxTestHelpers.h b/Source/platform/geometry/FloatBoxTestHelpers.h
index 074d48c27b34c7070ce2143eccbe073c1c7c7b27..c0047626d4f57a1a971428777beb3c63e76d9c0f 100644
--- a/Source/platform/geometry/FloatBoxTestHelpers.h
+++ b/Source/platform/geometry/FloatBoxTestHelpers.h
@@ -25,7 +25,7 @@
 #define FloatBoxTestHelpers_h
 
 #include <gtest/gtest.h>
-namespace WebCore {
+namespace blink {
 class FloatBox;
 
 void PrintTo(const FloatBox&, ::std::ostream*);
@@ -37,6 +37,6 @@ bool ApproximatelyEqual(const FloatBox&, const FloatBox&);
 ::testing::AssertionResult AssertAlmostEqual(const char*, const char*, const FloatBox&, const FloatBox&);
 ::testing::AssertionResult AssertContains(const char*, const char*, const FloatBox&, const FloatBox&);
 } // namespace FloatBoxTest
-} // namespace WebCore
+} // namespace blink
 
 #endif // FloatBoxTestHelpers_h