Delete all log messages depending on system_wrappers.

webrtc/modules/desktop_capture/window_capturer_x11.cc

Index: webrtc/modules/desktop_capture/window_capturer_x11.cc
diff --git a/webrtc/modules/desktop_capture/window_capturer_x11.cc b/webrtc/modules/desktop_capture/window_capturer_x11.cc
index 7468b3d7377f7dc6470b54409ec3e7f60eded153..778506523a034e3ec63c45293c9ad957fa730ee9 100644
--- a/webrtc/modules/desktop_capture/window_capturer_x11.cc
+++ b/webrtc/modules/desktop_capture/window_capturer_x11.cc
@@ -25,7 +25,6 @@
 #include "webrtc/modules/desktop_capture/x11/shared_x_display.h"
 #include "webrtc/modules/desktop_capture/x11/x_error_trap.h"
 #include "webrtc/modules/desktop_capture/x11/x_server_pixel_buffer.h"
-#include "webrtc/system_wrappers/include/logging.h"
 
 namespace webrtc {
 
@@ -141,7 +140,6 @@ WindowCapturerLinux::WindowCapturerLinux(const DesktopCaptureOptions& options)
       (major_version > 0 || minor_version >= 2)) {
     has_composite_extension_ = true;
   } else {
-    LOG(LS_INFO) << "Xcomposite extension not available or too old.";
   }
 
   x_display_->AddEventHandler(ConfigureNotify, this);
@@ -165,8 +163,6 @@ bool WindowCapturerLinux::GetSourceList(SourceList* sources) {
     int status = XQueryTree(display(), root_window, &root_window, &parent,
                             &children, &num_children);
     if (status == 0) {
-      LOG(LS_ERROR) << "Failed to query for child windows for screen "
-                    << screen;
       continue;
     }
 
@@ -224,7 +220,6 @@ bool WindowCapturerLinux::FocusOnSelectedSource() {
   int status = XQueryTree(
       display(), selected_window_, &root, &parent, &children, &num_children);
   if (status == 0) {
-    LOG(LS_ERROR) << "Failed to query for the root window.";
     return false;
   }
 
@@ -270,7 +265,6 @@ void WindowCapturerLinux::Start(Callback* callback) {
 
 void WindowCapturerLinux::CaptureFrame() {
   if (!x_server_pixel_buffer_.IsWindowValid()) {
-    LOG(LS_INFO) << "The window is no longer valid.";
     callback_->OnCaptureResult(Result::ERROR_PERMANENT, nullptr);
     return;
   }
@@ -281,7 +275,6 @@ void WindowCapturerLinux::CaptureFrame() {
     // Without the Xcomposite extension we capture when the whole window is
     // visible on screen and not covered by any other window. This is not
     // something we want so instead, just bail out.
-    LOG(LS_INFO) << "No Xcomposite extension detected.";
     callback_->OnCaptureResult(Result::ERROR_PERMANENT, nullptr);
     return;
   }
@@ -308,7 +301,6 @@ bool WindowCapturerLinux::HandleXEvent(const XEvent& event) {
     if (!DesktopSize(xce.width, xce.height).equals(
             x_server_pixel_buffer_.window_size())) {
       if (!x_server_pixel_buffer_.Init(display(), selected_window_)) {
-        LOG(LS_ERROR) << "Failed to initialize pixel buffer after resizing.";
       }
       return true;
     }
@@ -338,8 +330,6 @@ bool WindowCapturerLinux::HandleXEvent(const XEvent& event) {
   unsigned int num_children;
   if (!XQueryTree(display(), window, &root, &parent, &children,
                   &num_children)) {
-    LOG(LS_ERROR) << "Failed to query for child windows although window"
-                  << "does not have a valid WM_STATE.";
     return 0;
   }
   ::Window app_window = 0;
@@ -403,8 +393,6 @@ bool WindowCapturerLinux::GetWindowTitle(::Window window, std::string* title) {
                                            &cnt);
       if (status >= Success && cnt && *list) {
         if (cnt > 1) {
-          LOG(LS_INFO) << "Window has " << cnt
-                       << " text properties, only using the first one.";
         }
         *title = *list;
         result = true;