GN: Refactor so that WebRTC compiles with rtc_enable_protobuf=false.

webrtc/logging/BUILD.gn

Index: webrtc/logging/BUILD.gn
diff --git a/webrtc/logging/BUILD.gn b/webrtc/logging/BUILD.gn
index 2daaef4ffcf8ef26d5cdfe54df9c4f789774e440..98776d3f90ee750e29978d8301c2a37a7c2f2ed7 100644
--- a/webrtc/logging/BUILD.gn
+++ b/webrtc/logging/BUILD.gn
@@ -55,30 +55,6 @@ rtc_static_library("rtc_event_log_impl") {
   }
 }
 
-if (rtc_include_tests) {
-  rtc_source_set("rtc_event_log_tests") {
-    testonly = true
-    sources = [
-      "rtc_event_log/ringbuffer_unittest.cc",
-      "rtc_event_log/rtc_event_log_unittest.cc",
-      "rtc_event_log/rtc_event_log_unittest_helper.cc",
-    ]
-    deps = [
-      ":rtc_event_log_impl",
-      ":rtc_event_log_parser",
-      "../call",
-      "../modules/rtp_rtcp",
-      "../system_wrappers:metrics_default",
-      "//testing/gmock",
-      "//testing/gtest",
-    ]
-    if (!build_with_chromium && is_clang) {
-      # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
-      suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
-    }
-  }
-}
-
 if (rtc_enable_protobuf) {
   proto_library("rtc_event_log_proto") {
     sources = [
@@ -86,9 +62,7 @@ if (rtc_enable_protobuf) {
     ]
     proto_out_dir = "webrtc/logging/rtc_event_log"
   }
-}
 
-if (rtc_enable_protobuf) {
   rtc_static_library("rtc_event_log_parser") {
     sources = [
       "rtc_event_log/rtc_event_log_parser.cc",
@@ -105,4 +79,28 @@ if (rtc_enable_protobuf) {
       suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
     }
   }
+
+  if (rtc_include_tests) {
+    rtc_source_set("rtc_event_log_tests") {
+      testonly = true
+      sources = [
+        "rtc_event_log/ringbuffer_unittest.cc",
+        "rtc_event_log/rtc_event_log_unittest.cc",
+        "rtc_event_log/rtc_event_log_unittest_helper.cc",
+      ]
+      deps = [
+        ":rtc_event_log_impl",
+        ":rtc_event_log_parser",
+        "../call",
+        "../modules/rtp_rtcp",
+        "../system_wrappers:metrics_default",
+        "//testing/gmock",
+        "//testing/gtest",
+      ]
+      if (!build_with_chromium && is_clang) {
+        # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
+        suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
+      }
+    }
+  }
 }