When enable_resource_whitelist_generation==1 for release builds, pass unknown-pragmas cflags on Lin…

build/common.gypi

Index: build/common.gypi
===================================================================
--- build/common.gypi	(revision 270335)
+++ build/common.gypi	(working copy)
@@ -3099,6 +3099,13 @@
                 'cflags': [
                   '<@(release_extra_cflags)',
                 ],
+                'conditions': [
+                  ['enable_resource_whitelist_generation==1', {
+                    'cflags': [
+                      '-Wunknown-pragmas -Wno-error=unknown-pragmas',
+                    ],
+                  }],
+                ],
               }],
             ],
           }],
@@ -4140,11 +4147,6 @@
                   '-mllvm -asan-globals=0',
                 ],
               }],
-              ['enable_resource_whitelist_generation==1', {
-                'cflags': [
-                  '-Wunknown-pragmas -Wno-error=unknown-pragmas',
-                ],
-              }],
               ['android_webview_build==0', {
                 'defines': [
                   # The NDK has these things, but doesn't define the constants