Moved Gn target rtc_event_log to one directory above

webrtc/call/BUILD.gn

Index: webrtc/call/BUILD.gn
diff --git a/webrtc/call/BUILD.gn b/webrtc/call/BUILD.gn
index 32bcba3abd0893c9bb13beff2152accc1eb3dfa0..648bc85e0fc130a88fdd144cca54a1f35ccdccf2 100644
--- a/webrtc/call/BUILD.gn
+++ b/webrtc/call/BUILD.gn
@@ -23,7 +23,7 @@ rtc_static_library("call") {
   }
 
   deps = [
-    "..:rtc_event_log",
+    ":rtc_event_log",
     "..:webrtc_common",
     "../api:call_api",
     "../audio",
@@ -35,6 +35,32 @@ rtc_static_library("call") {
   ]
 }
 
+rtc_static_library("rtc_event_log") {
+  sources = [
+    "rtc_event_log.cc",
+    "rtc_event_log.h",
+    "rtc_event_log_helper_thread.cc",
+    "rtc_event_log_helper_thread.h",
+  ]
+
+  defines = []
+
+  deps = [
+    "..:webrtc_common",
+    "../modules/rtp_rtcp",
+  ]
+
+  if (rtc_enable_protobuf) {
+    defines += [ "ENABLE_RTC_EVENT_LOG" ]
+    deps += [ "..:rtc_event_log_proto" ]
+  }
+  if (is_clang && !is_nacl) {
+    # Suppress warnings from Chrome's Clang plugins.
+    # See http://code.google.com/p/webrtc/issues/detail?id=163 for details.
+    suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
+  }
+}
+
 if (rtc_include_tests) {
   rtc_source_set("call_tests") {
     testonly = true
@@ -63,7 +89,7 @@ if (rtc_include_tests) {
       "rtc_event_log_unittest_helper.cc",
     ]
     deps = [
-      "..:rtc_event_log",
+      ":rtc_event_log",
       "..:rtc_event_log_parser",
       "../modules/rtp_rtcp",
       "../system_wrappers:metrics_default",