Move weborigin/ under platform/ so that it may someday call platform APIs

Source/weborigin/weborigin.gypi

Index: Source/weborigin/weborigin.gypi
diff --git a/Source/weborigin/weborigin.gypi b/Source/weborigin/weborigin.gypi
deleted file mode 100644
index 9a0d91a3db150f9c519bbf4d916b0b4e19313b0b..0000000000000000000000000000000000000000
--- a/Source/weborigin/weborigin.gypi
+++ /dev/null
@@ -1,30 +0,0 @@
-{
-  'variables': {
-    'weborigin_files': [
-      'DatabaseIdentifier.cpp',
-      'DatabaseIdentifier.h',
-      'KURL.cpp',
-      'KURL.h',
-      'KURLHash.h',
-      'KnownPorts.cpp',
-      'KnownPorts.h',
-      'OriginAccessEntry.cpp',
-      'OriginAccessEntry.h',
-      'ReferrerPolicy.h',
-      'SchemeRegistry.cpp',
-      'SchemeRegistry.h',
-      'SecurityOrigin.cpp',
-      'SecurityOrigin.h',
-      'SecurityOriginCache.h',
-      'SecurityOriginHash.h',
-      'SecurityPolicy.cpp',
-      'SecurityPolicy.h',
-      'WebOriginExport.h',
-    ],
-    'weborigin_test_files': [
-      'DatabaseIdentifierTest.cpp',
-      'KURLTest.cpp',
-      'SecurityOriginTest.cpp',
-    ],
-  },
-}