Switching IRT to be built inside the chrome build.

chrome/nacl.gypi

Index: chrome/nacl.gypi
===================================================================
--- chrome/nacl.gypi	(revision 97427)
+++ chrome/nacl.gypi	(working copy)
@@ -79,27 +79,52 @@
           '<@(nacl_defines)',
         ],
       },
-      'conditions': [
-        ['target_arch=="ia32"', {
-           'copies': [
-             {
-               'destination': '<(PRODUCT_DIR)',
-               'files': [
-                 '../native_client/irt_binaries/nacl_irt_x86_32.nexe',
-               ],
-             },
-           ],
-        }],
-        ['target_arch=="x64" or OS=="win"', {
-           'copies': [
-             {
-               'destination': '<(PRODUCT_DIR)',
-               'files': [
-                 '../native_client/irt_binaries/nacl_irt_x86_64.nexe',
-               ],
-             },
-           ],
-        }],
+      'actions': [
+        {
+          'action_name': 'nacl_irt',
+          'message': 'Building NaCl IRT',
+          'variables': {
+            'irt_build_cmd': [
+              'python', 'build_nacl_irt.py', '--outdir', '<(PRODUCT_DIR)',
+            ],
+            'irt_inputs_cmd':
+                'python build_nacl_irt.py --inputs',
+          },
+          'conditions': [
+            ['OS=="win"', {
+              'inputs': [
+                '<!@(<(irt_inputs_cmd) --platform=x86-32 --platform=x86-64)',
+              ],
+              'outputs': ['<(PRODUCT_DIR)/nacl_irt_x86_32.nexe',
+                          '<(PRODUCT_DIR)/nacl_irt_x86_64.nexe'],
+              'action': [
+                '<@(irt_build_cmd)',
+                '--platform', 'x86-32',
+                '--platform', 'x86-64',
+              ],
+            }, {
+              'conditions': [
+                ['target_arch=="ia32"', {
+                  'inputs': [
+                    '<!@(<(irt_inputs_cmd) --platform=x86-32)',
+                  ],
+                  'outputs': ['<(PRODUCT_DIR)/nacl_irt_x86_32.nexe'],
+                  'action': [
+                    '<@(irt_build_cmd)', '--platform', 'x86-32',
+                  ],
+                }, {  # target_arch=="x64"
+                  'inputs': [
+                    '<!@(<(irt_inputs_cmd) --platform=x86-64)',
+                  ],
+                  'outputs': ['<(PRODUCT_DIR)/nacl_irt_x86_64.nexe'],
+                  'action': [
+                    '<@(irt_build_cmd)', '--platform', 'x86-64',
+                  ],
+                }],
+              ],
+            }],
+          ],
+        },
       ],
     },
   ],