Protect WebRTC code in content/renderer

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index 8105f61c8ed9c4036b070322b3a4f37fe26f33e4..2cec72d37c399fbaeae723f83b4fe5d3e3ebcfca 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -22,7 +22,6 @@
 #include "content/renderer/browser_plugin/browser_plugin.h"
 #include "content/renderer/browser_plugin/browser_plugin_manager.h"
 #include "content/renderer/internal_document_state_data.h"
-#include "content/renderer/media/rtc_peer_connection_handler.h"
 #include "content/renderer/render_thread_impl.h"
 #include "content/renderer/render_view_impl.h"
 #include "content/renderer/renderer_webapplicationcachehost_impl.h"
@@ -46,6 +45,10 @@
 #include "third_party/WebKit/public/web/WebView.h"
 #include "webkit/child/weburlresponse_extradata_impl.h"
 
+#if defined(ENABLE_WEBRTC)
+#include "content/renderer/media/rtc_peer_connection_handler.h"
+#endif
+
 using WebKit::WebDataSource;
 using WebKit::WebDocument;
 using WebKit::WebFrame;