Start enforcing strict checks for {virtual,override,final} on Linux

build/common.gypi

Index: build/common.gypi
diff --git a/build/common.gypi b/build/common.gypi
index bf3e7785d935cf81520a2102d362b43463fc221f..dac72f3457aa9ede3fe8deb57152f627c6be8057 100644
--- a/build/common.gypi
+++ b/build/common.gypi
@@ -2137,6 +2137,18 @@
         'clang_chrome_plugins_flags': [
           '<!@(<(DEPTH)/tools/clang/scripts/plugin_flags.sh)'
         ],
+        'conditions': [
+          # TODO(dcheng): https://crbug.com/417463 -- work to enable this flag
+          # on all platforms is currently underway.
+          ['OS=="linux" and chromeos==0', {

[Nico, 2014/12/31 01:35:56]

(if this ends up breaking the official bots, you could land this with an `and
buildtype!="Official"` clause added)

+            'clang_chrome_plugins_flags': [
+              '-Xclang',
+              '-plugin-arg-find-bad-constructs',
+              '-Xclang',
+              'strict-virtual-specifiers',
+            ],
+          }],
+        ],
       }],
       ['asan==1 or msan==1 or lsan==1 or tsan==1', {
         'clang%': 1,