[NaCl SDK] Remove create_nmf dependency on NACL_SDK_ROOT env var

ppapi/ppapi_nacl.gyp

Index: ppapi/ppapi_nacl.gyp
diff --git a/ppapi/ppapi_nacl.gyp b/ppapi/ppapi_nacl.gyp
index 9fdabc3c60613819f78a10ae2ab5be538b706ea3..91a4a40a72e07239cf09fb918e27398c473621a6 100644
--- a/ppapi/ppapi_nacl.gyp
+++ b/ppapi/ppapi_nacl.gyp
@@ -139,6 +139,10 @@
           '--strip-all',
         ],
         'create_nmf': '<(DEPTH)/native_client_sdk/src/tools/create_nmf.py',
+        'create_nmf_flags': [
+          '--no-default-libpath',
+          '--objdump=>(nacl_glibc_tc_root)/bin/x86_64-nacl-objdump',
+        ],
         'create_nonsfi_test_nmf': 'tests/create_nonsfi_test_nmf.py',
       },
       'conditions': [
@@ -149,7 +153,6 @@
             # doesn't work on Windows.
             'libdir_glibc64': '>(nacl_glibc_tc_root)/x86_64-nacl/lib',
             'libdir_glibc32': '>(nacl_glibc_tc_root)/x86_64-nacl/lib32',
-            'nacl_objdump': '>(nacl_glibc_tc_root)/bin/x86_64-nacl-objdump',
             'nmf_glibc%': '<(PRODUCT_DIR)/>(nexe_target)_glibc.nmf',
           },
           'actions': [
@@ -165,7 +168,7 @@
             'action': [
               'python',
               '>@(_inputs)',
-              '--objdump=>(nacl_objdump)',
+              '>@(create_nmf_flags)',
               '--output=>(nmf_glibc)',
               '--stage-dependencies=<(PRODUCT_DIR)',
             ],
@@ -218,6 +221,7 @@
               'action': [
                 'python',
                 '>@(_inputs)',
+                '>@(create_nmf_flags)',
                 '--output=>(nmf_pnacl)',
               ],
               'conditions': [
@@ -324,6 +328,7 @@
               'action': [
                 'python',
                 '>@(_inputs)',
+                '>@(create_nmf_flags)',
                 '--output=>(nmf_pnacl)',
               ],
             },
@@ -347,6 +352,7 @@
               'action': [
                 'python',
                 '>@(_inputs)',
+                '>@(create_nmf_flags)',
                 '--output=>(nmf_pnacl)',
               ],
             },