Removing the dependency on //third_party/webrtc:webrtc and replacing with rtc_base.

remoting/client/BUILD.gn

 # Copyright 2014 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.
 
 static_library("client") {
   # Disabled the source filters because there are _mac files that need to
   # be compiled on all platforms.
   set_sources_assignment_filter([])
 
   sources = [
@@ skipping 80 matching lines @@
     "gl_math.h",
     "gl_render_layer.cc",
     "gl_render_layer.h",
     "gl_renderer.cc",
     "gl_renderer.h",
   ]
 
   deps = [
     "//remoting/proto",
     "//third_party/libyuv",
-    "//third_party/webrtc",
+    "//third_party/webrtc/base:rtc_base",
   ]
 
   configs += [ "//third_party/khronos:khronos_headers" ]
 
   if (is_linux) {
     libs = [ "GL" ]
   }
 
   if (is_mac) {
     libs = [ "OpenGL.framework" ]
   }
 
+  if (is_ios) {
+    libs = [
+      "GLKit.framework",
+      "OpenGLES.framework",
+    ]
+  }
+
   if (is_win) {
     deps += [ "//third_party/angle:libGLESv2" ]
   }
 }
 
 source_set("unit_tests") {
   testonly = true
 
   # Disabled the source filters because there are _mac files that need to
   # be compiled on all platforms.
@@ skipping 19 matching lines @@
   configs += [
     "//remoting/build/config:version",
     "//remoting/build/config:enable_webrtc_remoting_client",
   ]
 
   deps = [
     ":client",
     "//remoting/proto",
     "//testing/gmock",
     "//testing/gtest",
-    "//third_party/webrtc",
+    "//third_party/webrtc/base:rtc_base",
   ]
 
   if (!is_win) {
     # Windows clang builder fails to link the test binary with ANGLE GLESv2.
     # crbug.com/642027
     sources += [ "gl_renderer_unittest.cc" ]
     deps += [ ":opengl_renderer" ]
   }
 }