Fix missing include directories in v8.gyp.

Review URL: http://codereview.chromium.org/149331


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2395 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

tools/gyp/v8.gyp

@@ -152,6 +152,9 @@
         'js2c',
         'v8_base',
       ],
+      'include_dirs': [
+        '../../src',
+      ],
       'sources': [
         '<(SHARED_INTERMEDIATE_DIR)/libraries-empty.cc',
         '<(INTERMEDIATE_DIR)/snapshot.cc',
@@ -506,6 +509,9 @@
       'dependencies': [
         'v8_nosnapshot',
       ],
+      'include_dirs': [
+        '../../src',
+      ],
       'sources': [
         '../../src/mksnapshot.cc',
       ],