Rename WebKit namespace to blink

Source/platform/HostWindow.h

Index: Source/platform/HostWindow.h
diff --git a/Source/platform/HostWindow.h b/Source/platform/HostWindow.h
index 77319ba2a612b14f5ac0c385fff71f5b671571a3..a2d64c63b8f0b20e99b9ebe495eff92820d93139 100644
--- a/Source/platform/HostWindow.h
+++ b/Source/platform/HostWindow.h
@@ -29,7 +29,7 @@
 #include "wtf/FastAllocBase.h"
 #include "wtf/Noncopyable.h"
 
-namespace WebKit {
+namespace blink {
 struct WebScreenInfo;
 }
 
@@ -58,7 +58,7 @@ public:
     virtual IntPoint screenToRootView(const IntPoint&) const = 0;
     virtual IntRect rootViewToScreen(const IntRect&) const = 0;
 
-    virtual WebKit::WebScreenInfo screenInfo() const = 0;
+    virtual blink::WebScreenInfo screenInfo() const = 0;
 
     virtual void scheduleAnimation() = 0;
 };