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

Source/platform/platform_derived_sources.gyp

Index: Source/platform/platform_derived_sources.gyp
diff --git a/Source/platform/platform_derived_sources.gyp b/Source/platform/platform_derived_sources.gyp
index 04562907dccd9252e03dfbe3d0f2daf7512bb58d..dcc798e746bca7f54a1a9c981f05b27ccf95f906 100644
--- a/Source/platform/platform_derived_sources.gyp
+++ b/Source/platform/platform_derived_sources.gyp
@@ -31,6 +31,8 @@
 {
   'includes': [
     '../build/features.gypi',
+    '../build/scripts.gypi',
+    'blink_platform.gypi',
   ],
 
   'targets': [
@@ -62,6 +64,27 @@
           ],
           'msvs_cygwin_shell': 1,
         },
+        {
+          'action_name': 'RuntimeEnabledFeatures',
+          'inputs': [
+            '<@(scripts_for_in_files)',
+            '../build/scripts/make_runtime_features.py',
+            'RuntimeEnabledFeatures.in',
+            '../build/scripts/templates/RuntimeEnabledFeatures.cpp.tmpl',
+            '../build/scripts/templates/RuntimeEnabledFeatures.h.tmpl',
+          ],
+          'outputs': [
+            '<(SHARED_INTERMEDIATE_DIR)/blink/RuntimeEnabledFeatures.cpp',
+            '<(SHARED_INTERMEDIATE_DIR)/blink/RuntimeEnabledFeatures.h',
+          ],
+          'action': [
+            'python',
+            '../build/scripts/make_runtime_features.py',
+            'RuntimeEnabledFeatures.in',
+            '--output_dir',
+            '<(SHARED_INTERMEDIATE_DIR)/blink',
+          ],
+        },
       ]
     },
   ],