Move (hopefully) remaining isolate related variables to toolchain.gypi

gypfiles/toolchain.gypi

Index: gypfiles/toolchain.gypi
diff --git a/gypfiles/toolchain.gypi b/gypfiles/toolchain.gypi
index f5f02899170b06ff1488660c4f5b91408921e314..1d4158c7cf58d16b8338ae549cd7ff17d731bbc6 100644
--- a/gypfiles/toolchain.gypi
+++ b/gypfiles/toolchain.gypi
@@ -29,6 +29,19 @@
 
 {
   'variables': {
+    'variables': {
+      'variables': {
+        # Instrument for code coverage and use coverage wrapper to exclude some
+        # files. Uses gcov if clang=0 is set explicitly. Otherwise,
+        # sanitizer_coverage must be set too.
+        'coverage%': 0,

[Michael Achenbach, 2016/06/02 06:46:03]

Did you remove this somewhere in return?

[jochen (gone - plz use gerrit), 2016/06/02 06:48:39]

it's also used in standalone.gypi directly, and that file also duplicates all
other *san variables, etc.. so I didn't delete it there.

+      },
+
+      'coverage%': '<(coverage)',
+
+      # Check if valgrind directories are present.
+      'has_valgrind%': '<!pymod_do_main(has_valgrind)',
+    },
     'msvs_use_common_release': 0,
     'clang%': 0,
     'asan%': 0,
@@ -37,6 +50,8 @@
     'tsan%': 0,
     'ubsan%': 0,
     'ubsan_vptr%': 0,
+    'has_valgrind%': '<(has_valgrind)',
+    'coverage%': '<(coverage)',
     'v8_target_arch%': '<(target_arch)',
     'v8_host_byteorder%': '<!(python -c "import sys; print sys.byteorder")',
     # Native Client builds currently use the V8 ARM JIT and