Don't attempt to walk the native stack by default.

This was unintentially enabled by default as a consequence of
https://codereview.chromium.org/1104323003/

BUG=23368
R=johnmccutchan@google.com

Review URL: https://codereview.chromium.org//1130253005

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@45666 260f80e4-7a28-3924-810f-c04153c831b5

runtime/vm/profiler.cc

@@ -37,7 +37,7 @@ DEFINE_FLAG(bool, trace_profiled_isolates, false, "Trace profiled isolates.");
 #endif
 DEFINE_FLAG(int, profile_depth, 8,
             "Maximum number stack frames walked. Minimum 1. Maximum 255.");
-#if defined(PROFILE_NATIVE_CODE) || defined(USING_SIMULATOR)
+#if defined(USING_SIMULATOR)
 DEFINE_FLAG(bool, profile_vm, true,
             "Always collect native stack traces.");
 #else

tools/gyp/configurations_android.gypi

@@ -57,7 +57,7 @@
               '-fno-omit-frame-pointer',
             ],
             'defines': [
-              'PROFILE_NATIVE_CODE'
+              'NATIVE_CODE_HAS_FRAME_POINTERS'
             ],
           }],
         ],
@@ -82,7 +82,7 @@
               '-fno-omit-frame-pointer',
             ],
             'defines': [
-              'PROFILE_NATIVE_CODE'
+              'NATIVE_CODE_HAS_FRAME_POINTERS'
             ],
           }],
         ],

tools/gyp/configurations_make.gypi

@@ -200,7 +200,7 @@
               '-fno-omit-frame-pointer',
             ],
             'defines': [
-              'PROFILE_NATIVE_CODE'
+              'NATIVE_CODE_HAS_FRAME_POINTERS'
             ],
           }],
         ],
@@ -217,7 +217,7 @@
               '-fno-omit-frame-pointer',
             ],
             'defines': [
-              'PROFILE_NATIVE_CODE'
+              'NATIVE_CODE_HAS_FRAME_POINTERS'
             ],
           }],
         ],

tools/gyp/configurations_msvs.gypi

@@ -63,7 +63,7 @@
               },
             },
             'defines': [
-              'PROFILE_NATIVE_CODE'
+              'NATIVE_CODE_HAS_FRAME_POINTERS'
             ],
           }],
         ],
@@ -107,7 +107,7 @@
               },
             },
             'defines': [
-              'PROFILE_NATIVE_CODE'
+              'NATIVE_CODE_HAS_FRAME_POINTERS'
             ],
           }],
         ],

tools/gyp/configurations_xcode.gypi

@@ -63,7 +63,7 @@
               ],
             },
             'defines': [
-              'PROFILE_NATIVE_CODE',
+              'NATIVE_CODE_HAS_FRAME_POINTERS',
             ],
           }],
         ],