skia/trunk changes for generic sanitizer gyp flag.

BUG=
R=borenet@google.com

Review URL: https://codereview.chromium.org/25564003

git-svn-id: http://skia.googlecode.com/svn/trunk/gyp@11648 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/common_conditions.gypi b/common_conditions.gypi
index f8012b9..1cbdd7b 100644
--- a/common_conditions.gypi
+++ b/common_conditions.gypi
@@ -277,26 +277,19 @@
               }],
             ],
           }],
-          [ 'skia_asan_build', {
+          # Enable asan, tsan, etc.
+          [ 'skia_sanitizer', {
             'cflags': [
-              '-fsanitize=address',
+              '-fsanitize=<(skia_sanitizer)',
               '-fno-omit-frame-pointer',
             ],
             'ldflags': [
-              '-fsanitize=address',
-            ],
-          }],
-          [ 'skia_tsan_build', {
-            'cflags': [
-              '-fsanitize=thread',
-              '-fno-omit-frame-pointer',
-            ],
-            'ldflags': [
-              '-fsanitize=thread',
+              '-fsanitize=<(skia_sanitizer)',
             ],
           }],
           [ 'skia_clang_build', {
             'cflags': [
+              # Extra warnings we like but that only Clang knows about.
               '-Wstring-conversion',
             ],
           }],
diff --git a/common_variables.gypi b/common_variables.gypi
index 3f7b154..9aeee62 100644
--- a/common_variables.gypi
+++ b/common_variables.gypi
@@ -78,8 +78,7 @@
         }],
       ],
 
-      'skia_asan_build%': 0,
-      'skia_tsan_build%': 0,
+      'skia_sanitizer%': '',
       'skia_scalar%': 'float',
       'skia_mesa%': 0,
       'skia_nv_path_rendering%': 0,
@@ -119,7 +118,7 @@
       }, {
         'skia_release_optimization_level%': '<(skia_default_gcc_optimization_level)',
       }],
-      [ 'skia_asan_build or skia_tsan_build', {
+      [ 'skia_sanitizer', {
         'skia_clang_build': 1,
       }, {
         'skia_clang_build%': 0,
@@ -133,8 +132,7 @@
     'arm_neon_optional%': 0,
     'skia_os%': '<(skia_os)',
     'os_posix%': '<(os_posix)',
-    'skia_asan_build%': '<(skia_asan_build)',
-    'skia_tsan_build%': '<(skia_tsan_build)',
+    'skia_sanitizer%': '<(skia_sanitizer)',
     'skia_scalar%': '<(skia_scalar)',
     'skia_mesa%': '<(skia_mesa)',
     'skia_nv_path_rendering%': '<(skia_nv_path_rendering)',