Moving vp9_decode_frame declaration to vp9_decodframe.h.

Change-Id: Ia7a772718a4b11b413c36d4280df8668e19c9084

vp9/decoder/vp9_decodframe.h

@@ -13,7 +13,9 @@
 #define VP9_DECODER_VP9_DECODFRAME_H_
 
 struct VP9Common;
+struct VP9Decompressor;
 
 void vp9_init_dequantizer(struct VP9Common *pc);
+int vp9_decode_frame(struct VP9Decompressor *cpi, const uint8_t **p_data_end);
 
 #endif  // VP9_DECODER_VP9_DECODFRAME_H_

vp9/decoder/vp9_onyxd_int.h

@@ -41,8 +41,6 @@ typedef struct VP9Decompressor {
   int initial_height;
 } VP9D_COMP;
 
-int vp9_decode_frame(VP9D_COMP *cpi, const uint8_t **p_data_end);
-
 
 #if CONFIG_DEBUG
 #define CHECK_MEM_ERROR(lval,expr) do {\