Enable public key pinning of local trust anchors

components/cronet/android/test/mock_cert_verifier.cc

Index: components/cronet/android/test/mock_cert_verifier.cc
diff --git a/components/cronet/android/test/mock_cert_verifier.cc b/components/cronet/android/test/mock_cert_verifier.cc
index 945f5ea2d67e48cbd807c1d1fe9e7a40578fb60e..a70a9ea9c2cbfda3630a46d7fc1384078d0c75c4 100644
--- a/components/cronet/android/test/mock_cert_verifier.cc
+++ b/components/cronet/android/test/mock_cert_verifier.cc
@@ -55,6 +55,7 @@ static jlong CreateMockCertVerifier(
     JNIEnv* env,
     const JavaParamRef<jclass>& jcaller,
     const JavaParamRef<jobjectArray>& jcerts,
+    const jboolean jknown_root,
     const JavaParamRef<jstring>& jtest_data_dir) {
   base::FilePath test_data_dir(
       base::android::ConvertJavaStringToUTF8(env, jtest_data_dir));
@@ -68,9 +69,8 @@ static jlong CreateMockCertVerifier(
     verify_result.verified_cert =
         net::ImportCertFromFile(net::GetTestCertsDirectory(), cert);
 
-    // Let the cert be treated as a known root cert.
-    // This will enable HPKP verification.
-    verify_result.is_issued_by_known_root = true;
+    // By default, HPKP verification is enabled for known trust roots only.
+    verify_result.is_issued_by_known_root = jknown_root;
 
     // Calculate the public key hash and add it to the verify_result.
     net::HashValue hashValue;