[Cronet] Separate Cronet implementation and API by package name.

components/cronet/android/api/src/org/chromium/net/UrlRequest.java

Index: components/cronet/android/api/src/org/chromium/net/UrlRequest.java
diff --git a/components/cronet/android/api/src/org/chromium/net/UrlRequest.java b/components/cronet/android/api/src/org/chromium/net/UrlRequest.java
index cb8c45af07cb896f8209274a65ef0047bafbe4bb..2b2957c2ab1ba60162d685e7735abc246cd176bc 100644
--- a/components/cronet/android/api/src/org/chromium/net/UrlRequest.java
+++ b/components/cronet/android/api/src/org/chromium/net/UrlRequest.java
@@ -505,9 +505,10 @@ public interface UrlRequest {
          * Convert a LoadState int to one of values listed above.
          * @param loadState a LoadState to convert.
          * @return static int Status.
+         * @hide only used by internal implementation.
          */
         @StatusValues
-        static int convertLoadState(int loadState) {
+        public static int convertLoadState(int loadState) {
             assert loadState >= LoadState.IDLE && loadState <= LoadState.READING_RESPONSE;
             switch (loadState) {
                 case (LoadState.IDLE):