Fix errors found in Mac gn component builds

third_party/sudden_motion_sensor/BUILD.gn

Index: third_party/sudden_motion_sensor/BUILD.gn
diff --git a/device/bluetooth/uribeacon/BUILD.gn b/third_party/sudden_motion_sensor/BUILD.gn
similarity index 65%
copy from device/bluetooth/uribeacon/BUILD.gn
copy to third_party/sudden_motion_sensor/BUILD.gn
index 0c7d1d8073cdf99aa48c2acd5f125228594f9837..5791fb8a68aa1632d4e319fb46b33ed5342e9fe8 100644
--- a/device/bluetooth/uribeacon/BUILD.gn
+++ b/third_party/sudden_motion_sensor/BUILD.gn
@@ -2,12 +2,12 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-component("uribeacon") {
-  sources = [
-    "uri_encoder.cc",
-    "uri_encoder.h",
-  ]
+static_library("sudden_motion_sensor") {

[brettw, 2015/04/15 19:01:06]

This should be a source_set.

[Jiang Jiang, 2015/04/15 20:21:26]

Done. Is there a rule of thumb for choosing source_set vs. static_library?

[brettw, 2015/04/16 17:04:18]

Yes, use source_set unless there's a good reason not to. The only real reason
not to is that something depends on the specific static library symbol
resolution rules.

   deps = [
     "//base",
   ]
+  sources = [

[brettw, 2015/04/15 19:01:06]

GN style is to put the source first.

[Jiang Jiang, 2015/04/15 20:21:26]

Done.

+    "sudden_motion_sensor_mac.cc",
+    "sudden_motion_sensor_mac.h",
+  ]
 }