Rename WebCore namespace to blink in Platform

Source/platform/transforms/PerspectiveTransformOperation.cpp

Index: Source/platform/transforms/PerspectiveTransformOperation.cpp
diff --git a/Source/platform/transforms/PerspectiveTransformOperation.cpp b/Source/platform/transforms/PerspectiveTransformOperation.cpp
index 7c805c1d5efdb1a296c25fc61e334ed15aeea020..cc5f89e22c7f6efd695da9b205444a09b64908fd 100644
--- a/Source/platform/transforms/PerspectiveTransformOperation.cpp
+++ b/Source/platform/transforms/PerspectiveTransformOperation.cpp
@@ -31,7 +31,7 @@
 
 using namespace std;
 
-namespace WebCore {
+namespace blink {
 
 PassRefPtr<TransformOperation> PerspectiveTransformOperation::blend(const TransformOperation* from, double progress, bool blendToIdentity)
 {
@@ -39,7 +39,7 @@ PassRefPtr<TransformOperation> PerspectiveTransformOperation::blend(const Transf
         return this;
 
     if (blendToIdentity) {
-        double p = WebCore::blend(m_p, 1., progress); // FIXME: this seems wrong. https://bugs.webkit.org/show_bug.cgi?id=52700
+        double p = blink::blend(m_p, 1., progress); // FIXME: this seems wrong. https://bugs.webkit.org/show_bug.cgi?id=52700
         return PerspectiveTransformOperation::create(clampToPositiveInteger(p));
     }
 
@@ -60,4 +60,4 @@ PassRefPtr<TransformOperation> PerspectiveTransformOperation::blend(const Transf
     return PerspectiveTransformOperation::create(0);
 }
 
-} // namespace WebCore
+} // namespace blink