Rename WebCore namespace to blink in Platform

Source/platform/graphics/ImageOrientation.cpp

Index: Source/platform/graphics/ImageOrientation.cpp
diff --git a/Source/platform/graphics/ImageOrientation.cpp b/Source/platform/graphics/ImageOrientation.cpp
index fa56f38bdc40d720d4e40738326eae9d827f216e..93e46447fea1a8c5e1f1342f26570df93eac10b1 100644
--- a/Source/platform/graphics/ImageOrientation.cpp
+++ b/Source/platform/graphics/ImageOrientation.cpp
@@ -29,7 +29,7 @@
 
 #include "platform/transforms/AffineTransform.h"
 
-namespace WebCore {
+namespace blink {
 
 AffineTransform ImageOrientation::transformFromDefault(const FloatSize& drawnSize) const
 {
@@ -59,4 +59,4 @@ AffineTransform ImageOrientation::transformFromDefault(const FloatSize& drawnSiz
     return AffineTransform();
 }
 
-} // namespace WebCore
+} // namespace blink