Add a UMA stat to track if the Browser blacklist is Set on the Renderer

content/content_renderer.gypi

Index: content/content_renderer.gypi
diff --git a/content/content_renderer.gypi b/content/content_renderer.gypi
index 3f2a696932f7e9eadd6d338d96adbbb48278ba0e..1ca3d448f9ef568fffb6a3648d25064bf6858467 100644
--- a/content/content_renderer.gypi
+++ b/content/content_renderer.gypi
@@ -547,6 +547,11 @@
         'common/process_watcher_posix.cc',
       ],
     }],
+    ['OS=="win"', {
+      'dependencies': [
+          '../chrome_elf/chrome_elf.gyp:blacklist',
+      ],
+    }],
     ['OS=="win" and win_use_allocator_shim==1', {
       'dependencies': [
           '../base/allocator/allocator.gyp:allocator',