Rename WebCore namespace to blink in Platform

Source/platform/geometry/FloatRoundedRect.h

Index: Source/platform/geometry/FloatRoundedRect.h
diff --git a/Source/platform/geometry/FloatRoundedRect.h b/Source/platform/geometry/FloatRoundedRect.h
index 4bdc8e2446b59baf1c445890706ca8be81fab830..9e3b4c4b6a53422505d05f6a9c09e35200b4000c 100644
--- a/Source/platform/geometry/FloatRoundedRect.h
+++ b/Source/platform/geometry/FloatRoundedRect.h
@@ -34,7 +34,7 @@
 #include "platform/geometry/FloatSize.h"
 #include "platform/geometry/RoundedRect.h"
 
-namespace WebCore {
+namespace blink {
 
 class PLATFORM_EXPORT FloatRoundedRect {
 public:
@@ -132,6 +132,6 @@ inline bool operator==(const FloatRoundedRect& a, const FloatRoundedRect& b)
     return a.rect() == b.rect() && a.radii() == b.radii();
 }
 
-} // namespace WebCore
+} // namespace blink
 
 #endif // FloatRoundedRect_h