Replace CHECK(x && y) with two separate CHECK() calls

webrtc/modules/desktop_capture/win/dxgi_texture_staging.cc

Index: webrtc/modules/desktop_capture/win/dxgi_texture_staging.cc
diff --git a/webrtc/modules/desktop_capture/win/dxgi_texture_staging.cc b/webrtc/modules/desktop_capture/win/dxgi_texture_staging.cc
index 48dc02748ba0bed42021106dd9b06c7ba747266e..c4415ca7954f011abb8cd9de11c96360ad634fff 100644
--- a/webrtc/modules/desktop_capture/win/dxgi_texture_staging.cc
+++ b/webrtc/modules/desktop_capture/win/dxgi_texture_staging.cc
@@ -87,7 +87,8 @@ void DxgiTextureStaging::AssertStageAndSurfaceAreSameObject() {
 bool DxgiTextureStaging::CopyFromTexture(
     const DXGI_OUTDUPL_FRAME_INFO& frame_info,
     ID3D11Texture2D* texture) {
-  RTC_DCHECK(texture && frame_info.AccumulatedFrames > 0);
+  RTC_DCHECK_GT(frame_info.AccumulatedFrames, 0);
+  RTC_DCHECK(texture);
 
   // AcquireNextFrame returns a CPU inaccessible IDXGIResource, so we need to
   // copy it to a CPU accessible staging ID3D11Texture2D.