Add missing {}s to conditionals & loops

This was necessary after:
44257cb8 apply clang-format

Which made some single-line statements into multi-line. Using braces on
multi-line statements better conforms with the Google style guide.

Bug: 433996651
Change-Id: I615c0ecf3b94571f67fceadfe8c15914aea45ccb

examples/dwebp.c

@@ -235,33 +235,33 @@ int main(int argc, const char* argv[]) {
       format = RAW_YUV;
     } else if (!strcmp(argv[c], "-pixel_format") && c < argc - 1) {
       const char* const fmt = argv[++c];
-      if (!strcmp(fmt, "RGB"))
+      if (!strcmp(fmt, "RGB")) {
         format = RGB;
-      else if (!strcmp(fmt, "RGBA"))
+      } else if (!strcmp(fmt, "RGBA")) {
         format = RGBA;
-      else if (!strcmp(fmt, "BGR"))
+      } else if (!strcmp(fmt, "BGR")) {
         format = BGR;
-      else if (!strcmp(fmt, "BGRA"))
+      } else if (!strcmp(fmt, "BGRA")) {
         format = BGRA;
-      else if (!strcmp(fmt, "ARGB"))
+      } else if (!strcmp(fmt, "ARGB")) {
         format = ARGB;
-      else if (!strcmp(fmt, "RGBA_4444"))
+      } else if (!strcmp(fmt, "RGBA_4444")) {
         format = RGBA_4444;
-      else if (!strcmp(fmt, "RGB_565"))
+      } else if (!strcmp(fmt, "RGB_565")) {
         format = RGB_565;
-      else if (!strcmp(fmt, "rgbA"))
+      } else if (!strcmp(fmt, "rgbA")) {
         format = rgbA;
-      else if (!strcmp(fmt, "bgrA"))
+      } else if (!strcmp(fmt, "bgrA")) {
         format = bgrA;
-      else if (!strcmp(fmt, "Argb"))
+      } else if (!strcmp(fmt, "Argb")) {
         format = Argb;
-      else if (!strcmp(fmt, "rgbA_4444"))
+      } else if (!strcmp(fmt, "rgbA_4444")) {
         format = rgbA_4444;
-      else if (!strcmp(fmt, "YUV"))
+      } else if (!strcmp(fmt, "YUV")) {
         format = YUV;
-      else if (!strcmp(fmt, "YUVA"))
+      } else if (!strcmp(fmt, "YUVA")) {
         format = YUVA;
-      else {
+      } else {
         fprintf(stderr, "Can't parse pixel_format %s\n", fmt);
         parse_error = 1;
       }

sharpyuv/sharpyuv_gamma.c

@@ -121,11 +121,12 @@ static uint16_t FromLinearSrgb(uint32_t value, int bit_depth) {
 #define MAX(a, b) (((a) > (b)) ? (a) : (b))
 
 static WEBP_INLINE float Roundf(float x) {
-  if (x < 0)
+  if (x < 0) {
     return (float)ceil((double)(x - 0.5f));
-  else
+  } else {
     return (float)floor((double)(x + 0.5f));
   }
+}
 
 static WEBP_INLINE float Powf(float base, float exp) {
   return (float)pow((double)base, (double)exp);

src/dsp/alpha_processing.c

@@ -355,23 +355,26 @@ static void ExtractGreen_C(const uint32_t* WEBP_RESTRICT argb,
 //------------------------------------------------------------------------------
 
 static int HasAlpha8b_C(const uint8_t* src, int length) {
-  while (length-- > 0)
+  while (length-- > 0) {
     if (*src++ != 0xff) return 1;
+  }
   return 0;
 }
 
 static int HasAlpha32b_C(const uint8_t* src, int length) {
   int x;
-  for (x = 0; length-- > 0; x += 4)
+  for (x = 0; length-- > 0; x += 4) {
     if (src[x] != 0xff) return 1;
+  }
   return 0;
 }
 
 static void AlphaReplace_C(uint32_t* src, int length, uint32_t color) {
   int x;
-  for (x = 0; x < length; ++x)
+  for (x = 0; x < length; ++x) {
     if ((src[x] >> 24) == 0) src[x] = color;
   }
+}
 
 //------------------------------------------------------------------------------
 // Simple channel manipulations.

src/dsp/alpha_processing_sse2.c

@@ -274,8 +274,9 @@ static int HasAlpha8b_SSE2(const uint8_t* src, int length) {
     const int mask = _mm_movemask_epi8(bits);
     if (mask != 0xffff) return 1;
   }
-  for (; i < length; ++i)
+  for (; i < length; ++i) {
     if (src[i] != 0xff) return 1;
+  }
   return 0;
 }
 
@@ -314,8 +315,9 @@ static int HasAlpha32b_SSE2(const uint8_t* src, int length) {
     const int mask = _mm_movemask_epi8(bits);
     if (mask != 0xffff) return 1;
   }
-  for (; i <= length; i += 4)
+  for (; i <= length; i += 4) {
     if (src[i] != 0xff) return 1;
+  }
   return 0;
 }
 
@@ -337,9 +339,10 @@ static void AlphaReplace_SSE2(uint32_t* src, int length, uint32_t color) {
     _mm_storeu_si128((__m128i*)(src + i + 0), _mm_or_si128(d0, e0));
     _mm_storeu_si128((__m128i*)(src + i + 4), _mm_or_si128(d1, e1));
   }
-  for (; i < length; ++i)
+  for (; i < length; ++i) {
     if ((src[i] >> 24) == 0) src[i] = color;
   }
+}
 
 // -----------------------------------------------------------------------------
 // Apply alpha value to rows

src/mux/muxread.c

@@ -278,9 +278,10 @@ WebPMux* WebPMuxCreateInternal(const WebPData* bitstream, int copy_data,
         ChunkRelease(&chunk);
         goto PushImage;
       default:  // A non-image chunk.
-        if (wpi->is_partial)
+        if (wpi->is_partial) {
           goto Err;  // Encountered a non-image chunk before
                      // getting all chunks of an image.
+        }
         if (chunk_list_ends[id] == NULL) {
           chunk_list_ends[id] =
               MuxGetChunkListFromId(mux, id);  // List to add this chunk.