Bug 776661 - Initialize all of the bytes in the incoming data structure in silk_get_TOC; r=rillian

Fixes a warning under clang in dead code. Ehsan's original patch
converted to upstream-carrying style and applied by rillian.

media/libopus/bug776661.patch

@@ -0,0 +1,26 @@
+# HG changeset patch
+# Parent bfb616effc20e449c553b492876a9731352496f0
+Bug 776661 - Initialize all of the bytes in the incoming data structure in silk_get_TOC; r=rillian
+
+diff --git a/media/libopus/silk/dec_API.c b/media/libopus/silk/dec_API.c
+--- a/media/libopus/silk/dec_API.c
++++ b/media/libopus/silk/dec_API.c
+@@ -352,17 +352,17 @@ opus_int silk_get_TOC(
+ 
+     if( nBytesIn < 1 ) {
+         return -1;
+     }
+     if( nFramesPerPayload < 0 || nFramesPerPayload > 3 ) {
+         return -1;
+     }
+ 
+-    silk_memset( Silk_TOC, 0, sizeof( Silk_TOC ) );
++    silk_memset( Silk_TOC, 0, sizeof( *Silk_TOC ) );
+ 
+     /* For stereo, extract the flags for the mid channel */
+     flags = silk_RSHIFT( payload[ 0 ], 7 - nFramesPerPayload ) & ( silk_LSHIFT( 1, nFramesPerPayload + 1 ) - 1 );
+ 
+     Silk_TOC->inbandFECFlag = flags & 1;
+     for( i = nFramesPerPayload - 1; i >= 0 ; i-- ) {
+         flags = silk_RSHIFT( flags, 1 );
+         Silk_TOC->VADFlags[ i ] = flags & 1;

media/libopus/silk/dec_API.c

@@ -357,7 +357,7 @@ opus_int silk_get_TOC(
         return -1;
     }
 
-    silk_memset( Silk_TOC, 0, sizeof( Silk_TOC ) );
+    silk_memset( Silk_TOC, 0, sizeof( *Silk_TOC ) );
 
     /* For stereo, extract the flags for the mid channel */
     flags = silk_RSHIFT( payload[ 0 ], 7 - nFramesPerPayload ) & ( silk_LSHIFT( 1, nFramesPerPayload + 1 ) - 1 );

media/libopus/update.sh

@@ -61,3 +61,6 @@ echo "copied from revision ${version}"
 sed -e "s/^The git tag\/revision used was .*/The git tag\/revision used was ${version}./" \
     ${TARGET}/README_MOZILLA > ${TARGET}/README_MOZILLA+ && \
     mv ${TARGET}/README_MOZILLA+ ${TARGET}/README_MOZILLA
+
+# apply outstanding local patches
+patch -p3 < ./bug776661.patch