Update libwebp to 1.1.0

thirdparty/libwebp/src/utils/color_cache_utils.h

@@ -26,7 +26,7 @@ extern "C" {
 
 // Main color cache struct.
 typedef struct {
-  uint32_t *colors_;  // color entries
+  uint32_t* colors_;  // color entries
   int hash_shift_;    // Hash shift: 32 - hash_bits_.
   int hash_bits_;
 } VP8LColorCache;

thirdparty/libwebp/src/utils/thread_utils.c

@@ -73,7 +73,7 @@ typedef struct {
 #endif
 
 static int pthread_create(pthread_t* const thread, const void* attr,
-                          unsigned int (__stdcall *start)(void*), void* arg) {
+                          unsigned int (__stdcall* start)(void*), void* arg) {
   (void)attr;
 #ifdef USE_CREATE_THREAD
   *thread = CreateThread(NULL,   /* lpThreadAttributes */

thirdparty/libwebp/src/utils/utils.c

@@ -216,9 +216,14 @@ void WebPSafeFree(void* const ptr) {
   free(ptr);
 }
 
-// Public API function.
+// Public API functions.
+
+void* WebPMalloc(size_t size) {
+  return WebPSafeMalloc(1, size);
+}
+
 void WebPFree(void* ptr) {
-  free(ptr);
+  WebPSafeFree(ptr);
 }
 
 //------------------------------------------------------------------------------