Moved transport.h from webrtc/ to webrtc/api, created build target and updated dependencies.

webrtc/BUILD.gn

 # Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 # TODO(kjellander): Rebase this to webrtc/build/common.gypi changes after r6330.
 
@@ skipping 213 matching lines @@
   rtc_static_library("webrtc") {
     # Only the root target should depend on this.
     visibility = [ "//:default" ]
 
     sources = [
       # TODO(kjellander): Remove this whenever possible. GN's static_library
       # target type requires at least one object to avoid errors linking.
       "build/no_op_function.cc",
       "call.h",
       "config.h",
+
+      # TODO(aleloi): remove transport.h and the transport api
+      # dependency once clients have updated to the new transport
+      # location in webrtc/api/call/transport.h See
+      # http://bugs.webrtc.org/6785.
       "transport.h",
     ]
 
     defines = []
 
     deps = [
       ":webrtc_common",
       "api",
+      "api:transport_api",
       "audio",
       "base",
       "call",
       "common_audio",
       "common_video",
       "libjingle/xmllite",
       "libjingle/xmpp",
       "logging",
       "media",
       "modules",
@@ skipping 453 matching lines @@
       ]
 
       deps = [
         "//base:base_java_test_support",
         "//webrtc/api:libjingle_peerconnection_java",
         "//webrtc/examples:AppRTCMobile_javalib",
       ]
     }
   }
 }