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

webrtc/pc/test/fakedatachannelprovider.h

Index: webrtc/pc/test/fakedatachannelprovider.h
diff --git a/webrtc/pc/test/fakedatachannelprovider.h b/webrtc/pc/test/fakedatachannelprovider.h
index 89bb987fe01f7680eb4530f2b094fbfe260a2e70..ecc0aa6c73b232967c7638b2c97df73600b88073 100644
--- a/webrtc/pc/test/fakedatachannelprovider.h
+++ b/webrtc/pc/test/fakedatachannelprovider.h
@@ -26,7 +26,8 @@ class FakeDataChannelProvider : public webrtc::DataChannelProviderInterface {
   bool SendData(const cricket::SendDataParams& params,
                 const rtc::CopyOnWriteBuffer& payload,
                 cricket::SendDataResult* result) override {
-    RTC_CHECK(ready_to_send_ && transport_available_);
+    RTC_CHECK(ready_to_send_);
+    RTC_CHECK(transport_available_);
     if (send_blocked_) {
       *result = cricket::SDR_BLOCK;
       return false;