Move the generation and inclusion of RuntimeEnabledFeatures to blink_platform.dll since many pieces…

Source/platform/blink_platform.gyp

Index: Source/platform/blink_platform.gyp
diff --git a/Source/platform/blink_platform.gyp b/Source/platform/blink_platform.gyp
index e373c90c002b753d4f4bbb0af3f4da35d7b61f31..0c276f72005f0754eb3eea41756c2976506d688c 100644
--- a/Source/platform/blink_platform.gyp
+++ b/Source/platform/blink_platform.gyp
@@ -29,8 +29,9 @@
 #
 {
   'includes': [
-    '../build/win/precompile.gypi',
     '../build/features.gypi',
+    '../build/scripts/scripts.gypi',
+    '../build/win/precompile.gypi',
     'blink_platform.gypi',
   ],
   'targets': [{
@@ -91,6 +92,8 @@
 
       # Additional .cpp files from platform_derived_sources.gyp:make_platform_derived_sources actions.
       '<(SHARED_INTERMEDIATE_DIR)/blink/FontFamilyNames.cpp',
+      '<(SHARED_INTERMEDIATE_DIR)/blink/RuntimeEnabledFeatures.cpp',
+      '<(SHARED_INTERMEDIATE_DIR)/blink/RuntimeEnabledFeatures.h',
     ],
     # Disable c4267 warnings until we fix size_t to int truncations.
     # Disable c4724 warnings which is generated in VS2012 due to improper