Add QUERY method support

okhttp/api/okhttp.api

@@ -1076,6 +1076,7 @@ public class okhttp3/Request$Builder {
 	public fun patch (Lokhttp3/RequestBody;)Lokhttp3/Request$Builder;
 	public fun post (Lokhttp3/RequestBody;)Lokhttp3/Request$Builder;
 	public fun put (Lokhttp3/RequestBody;)Lokhttp3/Request$Builder;
+	public fun query (Lokhttp3/RequestBody;)Lokhttp3/Request$Builder;
 	public fun removeHeader (Ljava/lang/String;)Lokhttp3/Request$Builder;
 	public fun tag (Ljava/lang/Class;Ljava/lang/Object;)Lokhttp3/Request$Builder;
 	public fun tag (Ljava/lang/Object;)Lokhttp3/Request$Builder;

okhttp/src/main/kotlin/okhttp3/Cache.kt

@@ -228,9 +228,10 @@ class Cache internal constructor(
       return null
     }
 
-    if (requestMethod != "GET") {
-      // Don't cache non-GET responses. We're technically allowed to cache HEAD requests and some
-      // POST requests, but the complexity of doing so is high and the benefit is low.
+    if (requestMethod !in CACHEABLE_METHODS) {
+      // Don't cache non-GET and non-QUERY responses. We're technically allowed to cache HEAD
+      // requests and some POST requests, but the complexity of doing so is high and the benefit
+      // is low.
       return null
     }
 
@@ -738,6 +739,7 @@ class Cache internal constructor(
     private const val ENTRY_METADATA = 0
     private const val ENTRY_BODY = 1
     private const val ENTRY_COUNT = 2
+    private val CACHEABLE_METHODS = setOf("GET", "QUERY")
 
     @JvmStatic
     fun key(url: HttpUrl): String = url.toString().encodeUtf8().md5().hex()

okhttp/src/main/kotlin/okhttp3/Request.kt

@@ -33,6 +33,7 @@ import okhttp3.internal.commonMethod
 import okhttp3.internal.commonPatch
 import okhttp3.internal.commonPost
 import okhttp3.internal.commonPut
+import okhttp3.internal.commonQuery
 import okhttp3.internal.commonRemoveHeader
 import okhttp3.internal.commonTag
 import okhttp3.internal.commonToString
@@ -276,6 +277,8 @@ class Request internal constructor(builder: Builder) {
 
     open fun patch(body: RequestBody): Builder = commonPatch(body)
 
+    open fun query(body: RequestBody): Builder = commonQuery(body)
+
     open fun method(
       method: String,
       body: RequestBody?,

okhttp/src/main/kotlin/okhttp3/internal/-RequestCommon.kt

@@ -96,6 +96,8 @@ fun Request.Builder.commonPut(body: RequestBody): Request.Builder = method("PUT"
 
 fun Request.Builder.commonPatch(body: RequestBody): Request.Builder = method("PATCH", body)
 
+fun Request.Builder.commonQuery(body: RequestBody): Request.Builder = method("QUERY", body)
+
 fun Request.Builder.commonMethod(
   method: String,
   body: RequestBody?,

okhttp/src/test/java/okhttp3/RequestTest.kt

@@ -210,6 +210,10 @@ class RequestTest {
     val patch = Request.Builder().url("http://localhost/api").patch(body).build()
     assertThat(patch.method).isEqualTo("PATCH")
     assertThat(patch.body).isEqualTo(body)
+
+    val query = Request.Builder().url("http://localhost/api").query(body).build()
+    assertThat(query.method).isEqualTo("QUERY")
+    assertThat(query.body).isEqualTo(body)
   }
 
   @Test