Merge to XFA: Get rid of most instance of 'foo == NULL'

TBR=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1520063002 .

(cherry picked from commit e385244f8cd6ae376f6b3cf1265a0795d5d30eff)

Review URL: https://codereview.chromium.org/1528763003 .

1 files changed, 2 insertions, 2 deletions

diff --git a/core/src/fdrm/crypto/fx_crypt_sha.cpp b/core/src/fdrm/crypto/fx_crypt_sha.cpp
index ecefdde05a..c7d171098b 100644
--- a/core/src/fdrm/crypto/fx_crypt_sha.cpp
+++ b/core/src/fdrm/crypto/fx_crypt_sha.cpp
@@ -390,7 +390,7 @@ uint64_t FX_ato64i(const FX_CHAR* str) {
   return ret;
 }
 void CRYPT_SHA384Start(void* context) {
-  if (context == NULL) {
+  if (!context) {
     return;
   }
   sha384_context* ctx = (sha384_context*)context;
@@ -604,7 +604,7 @@ void CRYPT_SHA384Generate(const uint8_t* data,
   CRYPT_SHA384Finish(&context, digest);
 }
 void CRYPT_SHA512Start(void* context) {
-  if (context == NULL) {
+  if (!context) {
     return;
   }
   sha384_context* ctx = (sha384_context*)context;