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

remoting/client/BUILD.gn

Index: remoting/client/BUILD.gn
diff --git a/remoting/client/BUILD.gn b/remoting/client/BUILD.gn
index cff4a2d29cf03721a7c31cd8b0f681e536ec14b4..b5ff104c1f134e26227fa4fcaed7a847e0e027dc 100644
--- a/remoting/client/BUILD.gn
+++ b/remoting/client/BUILD.gn
@@ -98,7 +98,7 @@ source_set("opengl_renderer") {
   deps = [
     "//remoting/proto",
     "//third_party/libyuv",
-    "//third_party/webrtc",
+    "//third_party/webrtc/base:rtc_base",
   ]
 
   configs += [ "//third_party/khronos:khronos_headers" ]
@@ -111,6 +111,13 @@ source_set("opengl_renderer") {
     libs = [ "OpenGL.framework" ]
   }
 
+  if (is_ios) {
+    libs = [
+      "GLKit.framework",
+      "OpenGLES.framework",
+    ]
+  }
+
   if (is_win) {
     deps += [ "//third_party/angle:libGLESv2" ]
   }
@@ -150,7 +157,7 @@ source_set("unit_tests") {
     "//remoting/proto",
     "//testing/gmock",
     "//testing/gtest",
-    "//third_party/webrtc",
+    "//third_party/webrtc/base:rtc_base",
   ]
 
   if (!is_win) {