GN: Exclude suppressions of Chromium Clang warnings for Chromium builds.

These suppressions are causing GN errors when Chromium targets are depending
directly on WebRTC targets (needed for https://codereview.chromium.org/2413103004)

BUG=webrtc:4256
NOTRY=True

Review-Url: https://codereview.webrtc.org/2408133008
Cr-Commit-Position: refs/heads/master@{#14644}
diff --git a/webrtc/examples/BUILD.gn b/webrtc/examples/BUILD.gn
index bc2d845..b0b530f 100644
--- a/webrtc/examples/BUILD.gn
+++ b/webrtc/examples/BUILD.gn
@@ -413,9 +413,8 @@
       "peerconnection/client/peer_connection_client.h",
     ]
 
-    if (is_clang) {
-      # Suppress warnings from the Chromium Clang plugin.
-      # See http://code.google.com/p/webrtc/issues/detail?id=163 for details.
+    if (!build_with_chromium && is_clang) {
+      # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
       suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
     }
     if (is_win) {
@@ -469,9 +468,8 @@
       "//webrtc/base:rtc_base_approved",
       "//webrtc/tools:command_line_parser",
     ]
-    if (is_clang) {
-      # Suppress warnings from the Chromium Clang plugin.
-      # See http://code.google.com/p/webrtc/issues/detail?id=163 for details.
+    if (!build_with_chromium && is_clang) {
+      # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
       suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
     }
   }
@@ -485,9 +483,8 @@
       "//webrtc/system_wrappers:field_trial_default",
       "//webrtc/system_wrappers:metrics_default",
     ]
-    if (is_clang) {
-      # Suppress warnings from the Chromium Clang plugin.
-      # See http://code.google.com/p/webrtc/issues/detail?id=163 for details.
+    if (!build_with_chromium && is_clang) {
+      # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
       suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
     }
   }
@@ -501,9 +498,8 @@
       "//webrtc/system_wrappers:field_trial_default",
       "//webrtc/system_wrappers:metrics_default",
     ]
-    if (is_clang) {
-      # Suppress warnings from the Chromium Clang plugin.
-      # See http://code.google.com/p/webrtc/issues/detail?id=163 for details.
+    if (!build_with_chromium && is_clang) {
+      # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
       suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
     }
   }
@@ -517,9 +513,8 @@
       "//webrtc/system_wrappers:field_trial_default",
       "//webrtc/system_wrappers:metrics_default",
     ]
-    if (is_clang) {
-      # Suppress warnings from the Chromium Clang plugin.
-      # See http://code.google.com/p/webrtc/issues/detail?id=163 for details.
+    if (!build_with_chromium && is_clang) {
+      # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
       suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
     }
   }