Put Data Reduction Proxy support in Cronet behind a gyp flag

components/cronet/android/test/src/org/chromium/net/NativeTestServer.java

Index: components/cronet/android/test/src/org/chromium/net/NativeTestServer.java
diff --git a/components/cronet/android/test/src/org/chromium/net/NativeTestServer.java b/components/cronet/android/test/src/org/chromium/net/NativeTestServer.java
index ddc1e849cdedcae2c0af03482a592c9937a3601d..a1d280fea17c1ccd96658b37c768842f7699ec4a 100644
--- a/components/cronet/android/test/src/org/chromium/net/NativeTestServer.java
+++ b/components/cronet/android/test/src/org/chromium/net/NativeTestServer.java
@@ -51,6 +51,10 @@ public final class NativeTestServer {
         return nativeGetHostPort();
     }
 
+    public static boolean isDataReductionProxySupported() {
+        return nativeIsDataReductionProxySupported();
+    }
+
     private static native boolean nativeStartNativeTestServer(String filePath);
     private static native void nativeShutdownNativeTestServer();
     private static native String nativeGetEchoBodyURL();
@@ -60,4 +64,5 @@ public final class NativeTestServer {
     private static native String nativeGetRedirectToEchoBody();
     private static native String nativeGetFileURL(String filePath);
     private static native String nativeGetHostPort();
+    private static native boolean nativeIsDataReductionProxySupported();
 }