Fix chromoting build issues on Windows

remoting/host/capturer_gdi.cc

Index: remoting/host/capturer_gdi.cc
diff --git a/remoting/host/capturer_gdi.cc b/remoting/host/capturer_gdi.cc
index 45e52242abc7b3722eabd543d527280e78f12dc4..3b5a84416d707be1dbb05b06aa630dc8a63f7402 100644
--- a/remoting/host/capturer_gdi.cc
+++ b/remoting/host/capturer_gdi.cc
@@ -66,15 +66,11 @@ void CapturerGdi::GetDataStride(int strides[]) const {
 }
 
 int CapturerGdi::GetWidth() const {
-  if (!width_)
-    width_ = GetSystemMetrics(SM_CXSCREEN);
-  return width_;
+  return GetSystemMetrics(SM_CXSCREEN);
 }
 
 int CapturerGdi::GetHeight() const {
-  if (!height_)
-    height_ = GetSystemMetrics(SM_CYSCREEN);
-  return height_;
+  return GetSystemMetrics(SM_CYSCREEN);
 }
 
 // TODO(fbarchard): handle error cases.