Add devtools protocol constants generator to chrome/

chrome/browser/devtools/devtools_protocol_constants.gyp

Index: chrome/browser/devtools/devtools_protocol_constants.gyp
diff --git a/chrome/browser/devtools/devtools_protocol_constants.gyp b/chrome/browser/devtools/devtools_protocol_constants.gyp
new file mode 100644
index 0000000000000000000000000000000000000000..dd6b5f5bb4c2fc0be04ab8d03bcc00af70e20fc5
--- /dev/null
+++ b/chrome/browser/devtools/devtools_protocol_constants.gyp
@@ -0,0 +1,39 @@
+# Copyright (c) 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+{
+  'targets': [
+    {
+      'target_name': 'devtools_protocol_constants',
+      'type': 'none',
+      'actions': [
+        {
+          'action_name': 'devtools_protocol_constants',
+          'variables': {
+            'blink_protocol': '../../../third_party/WebKit/Source/devtools/protocol.json',
+            'generator': '../../../content/public/browser/devtools_protocol_constants_generator.py',
+            'package': 'chrome'
+          },
+          'inputs': [
+            '<(blink_protocol)',
+            '<(generator)',
+          ],
+          'outputs': [
+            '<(SHARED_INTERMEDIATE_DIR)/<(package)/browser/devtools/devtools_protocol_constants.cc',
+            '<(SHARED_INTERMEDIATE_DIR)/<(package)/browser/devtools/devtools_protocol_constants.h'
+          ],
+          'action':[
+            'python',
+            '<(generator)',
+            '<(package)',
+            '<(SHARED_INTERMEDIATE_DIR)/<(package)/browser/devtools/devtools_protocol_constants.cc',
+            '<(SHARED_INTERMEDIATE_DIR)/<(package)/browser/devtools/devtools_protocol_constants.h',
+            '<(blink_protocol)',
+          ],
+          'message': 'Generating DevTools protocol constants from <(blink_protocol)'
+        }
+      ],
+    },
+  ],
+}