Delete all log messages depending on system_wrappers.

webrtc/modules/desktop_capture/window_capturer_win.cc

Index: webrtc/modules/desktop_capture/window_capturer_win.cc
diff --git a/webrtc/modules/desktop_capture/window_capturer_win.cc b/webrtc/modules/desktop_capture/window_capturer_win.cc
index 31ad0b0acac2055173747bcb7614c852699df680..9382a6bcbdbedb3b0ca1fb655229739ca0ec7fb6 100644
--- a/webrtc/modules/desktop_capture/window_capturer_win.cc
+++ b/webrtc/modules/desktop_capture/window_capturer_win.cc
@@ -18,7 +18,6 @@
 #include "webrtc/modules/desktop_capture/desktop_capturer.h"
 #include "webrtc/modules/desktop_capture/desktop_frame_win.h"
 #include "webrtc/modules/desktop_capture/win/window_capture_utils.h"
-#include "webrtc/system_wrappers/include/logging.h"
 
 namespace webrtc {
 
@@ -160,7 +159,6 @@ void WindowCapturerWin::Start(Callback* callback) {
 
 void WindowCapturerWin::CaptureFrame() {
   if (!window_) {
-    LOG(LS_ERROR) << "Window hasn't been selected: " << GetLastError();
     callback_->OnCaptureResult(Result::ERROR_PERMANENT, nullptr);
     return;
   }
@@ -188,14 +186,12 @@ void WindowCapturerWin::CaptureFrame() {
   DesktopRect original_rect;
   DesktopRect cropped_rect;
   if (!GetCroppedWindowRect(window_, &cropped_rect, &original_rect)) {
-    LOG(LS_WARNING) << "Failed to get window info: " << GetLastError();
     callback_->OnCaptureResult(Result::ERROR_TEMPORARY, nullptr);
     return;
   }
 
   HDC window_dc = GetWindowDC(window_);
   if (!window_dc) {
-    LOG(LS_WARNING) << "Failed to get window DC: " << GetLastError();
     callback_->OnCaptureResult(Result::ERROR_TEMPORARY, nullptr);
     return;
   }
@@ -253,7 +249,6 @@ void WindowCapturerWin::CaptureFrame() {
       DesktopRect::MakeSize(frame->size()));
 
   if (!result) {
-    LOG(LS_ERROR) << "Both PrintWindow() and BitBlt() failed.";
     frame.reset();
   }