Decoupling rtc_base from apple specific code [without cyclic deps]

webrtc/video/BUILD.gn

Index: webrtc/video/BUILD.gn
diff --git a/webrtc/video/BUILD.gn b/webrtc/video/BUILD.gn
index 430b00de6a05d93a125bccad63414944aab33ee2..49f5a8ac5f35c1fe289eebdda9c76bcc10e335d0 100644
--- a/webrtc/video/BUILD.gn
+++ b/webrtc/video/BUILD.gn
@@ -173,6 +173,9 @@ if (rtc_include_tests) {
       # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
       suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
     }
+    if (is_ios || is_mac) {
+      deps += [ "../rtc_base:rtc_base_apple" ]
+    }
   }
 
   rtc_executable("screenshare_loopback") {
@@ -196,6 +199,9 @@ if (rtc_include_tests) {
       # See http://code.google.com/p/webrtc/issues/detail?id=163 for details.
       suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
     }
+    if (is_ios || is_mac) {
+      deps += [ "../rtc_base:rtc_base_apple" ]
+    }
   }
 
   rtc_executable("video_replay") {
@@ -226,6 +232,9 @@ if (rtc_include_tests) {
       # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
       suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
     }
+    if (is_ios) {
+      deps += [ "../rtc_base:rtc_base_apple" ]
+    }
   }
 
   # TODO(pbos): Rename test suite.