apply clang-format

(Debian clang-format version 19.1.7 (3+build4)) with `--style=Google`.

Manual changes:
* clang-format disabled around macros with stringification (mostly
  assembly)
* some inline assembly strings were adjusted to avoid awkward line
  breaks
* trailing commas, `//` or suffixes (`ull`) added to help array
  formatting
* thread_utils.c: parameter comments were changed to the more common
  /*...=*/ style to improve formatting

The automatically generated code under swig/ was skipped.

Bug: 433996651
Change-Id: Iea3f24160d78d2a2653971cdf13fa932e47ff1b3

imageio/image_dec.h

@@ -22,8 +22,8 @@
 #include "webp/config.h"
 #endif
 
-#include "./metadata.h"
 #include "./jpegdec.h"
+#include "./metadata.h"
 #include "./pngdec.h"
 #include "./pnmdec.h"
 #include "./tiffdec.h"
@@ -53,8 +53,8 @@ WebPInputFileFormat WebPGuessImageType(const uint8_t* const data,
 
 // Signature for common image-reading functions (ReadPNG, ReadJPEG, ...)
 typedef int (*WebPImageReader)(const uint8_t* const data, size_t data_size,
-                               struct WebPPicture* const pic,
-                               int keep_alpha, struct Metadata* const metadata);
+                               struct WebPPicture* const pic, int keep_alpha,
+                               struct Metadata* const metadata);
 
 // Return the reader associated to a given file format.
 WebPImageReader WebPGetImageReader(WebPInputFileFormat format);
@@ -66,7 +66,7 @@ WebPImageReader WebPGuessImageReader(const uint8_t* const data,
                                      size_t data_size);
 
 #ifdef __cplusplus
-}    // extern "C"
+}  // extern "C"
 #endif
 
 #endif  // WEBP_IMAGEIO_IMAGE_DEC_H_