patch from chinmaygarde@ to make progress on mac, ios.

build/config/ios/ios_sdk.gni

Index: build/config/ios/ios_sdk.gni
diff --git a/build/config/ios/ios_sdk.gni b/build/config/ios/ios_sdk.gni
index cb2708b76c107d329bf17c5611fbbcd76aa713b3..e06e767a188405ec3511f98ba01a0bde0813f5aa 100644
--- a/build/config/ios/ios_sdk.gni
+++ b/build/config/ios/ios_sdk.gni
@@ -1,4 +1,4 @@
-# Copyright 2014 The Chromium Authors. All rights reserved.
+# Copyright 2015 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.
 
@@ -15,6 +15,9 @@ declare_args() {
 
   # Version of iOS that we're targeting.
   ios_deployment_target = "6.0"

[sdefresne, 2015/07/25 19:15:30]

nit: gyp uses "7.0" as the default ios_deployment_target (see build/common.gypi)
so I think we should update this one too.

[Dirk Pranke, 2015/07/31 21:27:40]

Done.

+
+  # The iOS Code signing identity to use
+  ios_code_signing_identity = ""
 }

[sdefresne, 2015/07/25 19:15:30]

We need to provide a way to build for "armv7"/"arm64" (i.e. for devices) without
signing for two uses case, 1. for upstream bots, as they do not have a valid key
to sign, and 2. for downstream release build as the signature is done in a
second step.

I would recommend doing:

# Control whether code signing is enabled. Only used when building for real
devices
# in order to allow signing in a later stage.
ios_enable_code_signing = true

[Dirk Pranke, 2015/07/31 21:27:40]

Will rework.

 
 if (ios_sdk_path == "") {
@@ -28,3 +31,21 @@ if (ios_sdk_path == "") {
       exec_script("ios_sdk.py", [ _ios_sdk_to_query ], "list lines")
   ios_sdk_path = _ios_sdk_result[0]
 }
+
+if (use_ios_simulator) {

[sdefresne, 2015/07/25 19:15:30]

Change to

if (use_ios_simulator || !ios_enabled_code_signin) {

[Dirk Pranke, 2015/07/31 21:27:40]

Will rework.

+  # Always disable code signing on the simulator
+  ios_code_signing_identity = ""
+} else {
+  # If an identity is not provided, look for one on the host
+  if (ios_code_signing_identity == "") {
+    _ios_identities = exec_script("find_signing_identity.py", [], "list lines")
+    ios_code_signing_identity = _ios_identities[0]
+  }
+
+  if (ios_code_signing_identity == "") {
+    print("Tried to prepare a device build without specifying a code signing")
+    print("identity and could not detect one automatically either.")
+    print("TIP: Simulator builds dont require code signing...")
+    assert(false)
+  }
+}