Make NaCl IPC-based PPAPI proxy build on ARM.

build/common_untrusted.gypi

+# Copyright (c) 2012 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.
+
+# This GYP file should be included for every target in Chromium that is built
+# using the NaCl toolchain.
+{
+  'includes': [
+    '../native_client/build/untrusted.gypi',
+  ],
+  'target_defaults': {
+    'variables': {
+      'conditions': [
+        ['target_arch=="arm"', {
+          'clang': 1,

[DaleCurtis, 2012/08/23 19:16:40]

Slightly off topic: but I'd heard the clang arm cross compiler was behind the
x86 version, particularly around optimizations.

[bbudge, 2012/08/23 20:32:30]

My understanding is that Clang is the only ARM compiler for NaCl.

+          'defines': [
+            # Disable ValGrind. The assembly code it generates causes the build
+            # to fail.
+            'NVALGRIND',
+          ],
+          'compile_flags': [
+            # Disable C++ 11 extensions. Chrome's OVERRIDE macro will generate
+            # warnings that cause the build to fail.
+            '-Wno-c++11-extensions',
+          ],
+        }],
+      ],
+    },
+  },
+}