Add breakpad support to mojo shell apk.

shell/crash/BUILD.gn

+# 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.
+
+if (is_android) {
+  import("//build/config/android/config.gni")
+}
+
+source_set("crash") {
+  sources = []
+
+  if (is_android) {
+    libs = [ "log" ]
+  }
+
+  if (is_android || is_linux) {
+    # Want these files on both Linux and Android.

[viettrungluu, 2015/07/27 20:28:35]

I think you should just go ahead and call these files "breakpad.{cc,h}" instead.

[qsr, 2015/07/28 08:46:22]

Done.

+    set_sources_assignment_filter([])
+    sources += [
+      "breakpad_linux.cc",
+      "breakpad_linux.h",
+    ]
+  }
+
+  deps = [
+    "//base",
+    "//third_party/breakpad:client",
+  ]
+}