Delete all log messages depending on system_wrappers.

webrtc/modules/desktop_capture/screen_drawer_unittest.cc

Index: webrtc/modules/desktop_capture/screen_drawer_unittest.cc
diff --git a/webrtc/modules/desktop_capture/screen_drawer_unittest.cc b/webrtc/modules/desktop_capture/screen_drawer_unittest.cc
index 2821af0fbf12304643cf1a5fef6b045ce359148b..743289f3e6598d6aa3782f5b365efc69427293b2 100644
--- a/webrtc/modules/desktop_capture/screen_drawer_unittest.cc
+++ b/webrtc/modules/desktop_capture/screen_drawer_unittest.cc
@@ -14,7 +14,6 @@
 
 #include "webrtc/base/random.h"
 #include "webrtc/base/timeutils.h"
-#include "webrtc/system_wrappers/include/logging.h"
 #include "webrtc/system_wrappers/include/sleep.h"
 #include "webrtc/test/gtest.h"
 
@@ -27,13 +26,10 @@ namespace webrtc {
 TEST(ScreenDrawerTest, DISABLED_DrawRectangles) {
   std::unique_ptr<ScreenDrawer> drawer = ScreenDrawer::Create();
   if (!drawer) {
-    LOG(LS_WARNING) << "No ScreenDrawer implementation for current platform.";
     return;
   }
 
   if (drawer->DrawableRegion().is_empty()) {
-    LOG(LS_WARNING) << "ScreenDrawer of current platform does not provide a "
-                       "non-empty DrawableRegion().";
     return;
   }