Migrate String8|16.setTo to assignment operator

Bug: 295394788
Test: make checkbuild
Change-Id: I6e9ea0d73b5ad7321d486b0dbcbfe29b9dbeb088
diff --git a/media/libmediaplayerservice/nuplayer/RTPSource.cpp b/media/libmediaplayerservice/nuplayer/RTPSource.cpp
index efe1a80..9a33120 100644
--- a/media/libmediaplayerservice/nuplayer/RTPSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/RTPSource.cpp
@@ -751,9 +751,9 @@
         const char *semicolon_pos = strchr(value_start, ';');
         String8 value;
         if (semicolon_pos == NULL) {
-            value.setTo(value_start);
+            value = value_start;
         } else {
-            value.setTo(value_start, semicolon_pos - value_start);
+            value = String8(value_start, semicolon_pos - value_start);
         }
         if (setParameter(key, value) != OK) {
             return BAD_VALUE;
@@ -796,7 +796,7 @@
         --i;
     }
 
-    s->setTo(String8(&data[leading_space], i - leading_space));
+    *s = String8(&data[leading_space], i - leading_space);
 }
 
 }  // namespace android