diff --git a/src/net/cert/cert_verifier.cc b/src/net/cert/cert_verifier.cc
index 6504721e2f..f9b6f3d379 100644
--- a/src/net/cert/cert_verifier.cc
+++ b/src/net/cert/cert_verifier.cc
@@ -87,7 +87,8 @@ std::unique_ptr<CertVerifier> CertVerifier::CreateDefaultWithoutCaching(
   return std::unique_ptr<CertVerifier>();
 #else
   scoped_refptr<CertVerifyProc> verify_proc;
-#if defined(OS_FUCHSIA) || defined(OS_LINUX) || defined(OS_CHROMEOS)
+#if defined(OS_FUCHSIA) || defined(OS_LINUX) || defined(OS_CHROMEOS) || \
+    defined(OS_ANDROID)
   verify_proc =
       CertVerifyProc::CreateBuiltinVerifyProc(std::move(cert_net_fetcher));
 #elif BUILDFLAG(BUILTIN_CERT_VERIFIER_FEATURE_SUPPORTED)
diff --git a/src/net/cert/cert_verify_proc.cc b/src/net/cert/cert_verify_proc.cc
index 6135c24fe8..253111939f 100644
--- a/src/net/cert/cert_verify_proc.cc
+++ b/src/net/cert/cert_verify_proc.cc
@@ -47,7 +47,8 @@
 #include "third_party/boringssl/src/include/openssl/pool.h"
 #include "url/url_canon.h"
 
-#if defined(OS_FUCHSIA) || defined(USE_NSS_CERTS) || defined(OS_MAC)
+#if defined(OS_FUCHSIA) || defined(USE_NSS_CERTS) || defined(OS_MAC) || \
+    defined(OS_ANDROID) || defined(OS_LINUX)
 #include "net/cert/cert_verify_proc_builtin.h"
 #endif
 
@@ -493,7 +494,8 @@ base::Value CertVerifyParams(X509Certificate* cert,
 
 }  // namespace
 
-#if !(defined(OS_FUCHSIA) || defined(OS_LINUX) || defined(OS_CHROMEOS))
+#if !(defined(OS_FUCHSIA) || defined(OS_LINUX) || defined(OS_CHROMEOS) || \
+      defined(OS_ANDROID))
 // static
 scoped_refptr<CertVerifyProc> CertVerifyProc::CreateSystemVerifyProc(
     scoped_refptr<CertNetFetcher> cert_net_fetcher) {
@@ -511,7 +513,8 @@ scoped_refptr<CertVerifyProc> CertVerifyProc::CreateSystemVerifyProc(
 }
 #endif
 
-#if defined(OS_FUCHSIA) || defined(USE_NSS_CERTS) || defined(OS_MAC)
+#if defined(OS_FUCHSIA) || defined(USE_NSS_CERTS) || defined(OS_MAC) || \
+    defined(OS_ANDROID) || defined(OS_LINUX)
 // static
 scoped_refptr<CertVerifyProc> CertVerifyProc::CreateBuiltinVerifyProc(
     scoped_refptr<CertNetFetcher> cert_net_fetcher) {
diff --git a/src/net/cert/cert_verify_proc.h b/src/net/cert/cert_verify_proc.h
index 9a6dd8459f..5225f1da0a 100644
--- a/src/net/cert/cert_verify_proc.h
+++ b/src/net/cert/cert_verify_proc.h
@@ -23,7 +23,7 @@ class CertVerifyResult;
 class CRLSet;
 class NetLogWithSource;
 class X509Certificate;
-typedef std::vector<scoped_refptr<X509Certificate> > CertificateList;
+typedef std::vector<scoped_refptr<X509Certificate>> CertificateList;
 
 // Class to perform certificate path building and verification for various
 // certificate uses. All methods of this class must be thread-safe, as they
@@ -66,14 +66,16 @@ class NET_EXPORT CertVerifyProc
     kMaxValue = kChainLengthOne
   };
 
-#if !(defined(OS_FUCHSIA) || defined(OS_LINUX) || defined(OS_CHROMEOS))
+#if !(defined(OS_FUCHSIA) || defined(OS_LINUX) || defined(OS_CHROMEOS) || \
+      defined(OS_ANDROID))
   // Creates and returns a CertVerifyProc that uses the system verifier.
   // |cert_net_fetcher| may not be used, depending on the implementation.
   static scoped_refptr<CertVerifyProc> CreateSystemVerifyProc(
       scoped_refptr<CertNetFetcher> cert_net_fetcher);
 #endif
 
-#if defined(OS_FUCHSIA) || defined(USE_NSS_CERTS) || defined(OS_MAC)
+#if defined(OS_FUCHSIA) || defined(USE_NSS_CERTS) || defined(OS_MAC) || \
+    defined(OS_ANDROID) || defined(OS_LINUX)
   // Creates and returns a CertVerifyProcBuiltin using the SSL SystemTrustStore.
   static scoped_refptr<CertVerifyProc> CreateBuiltinVerifyProc(
       scoped_refptr<CertNetFetcher> cert_net_fetcher);
diff --git a/src/net/cert/ev_root_ca_metadata.h b/src/net/cert/ev_root_ca_metadata.h
index 9d2b323fbc..b3c5dcc073 100644
--- a/src/net/cert/ev_root_ca_metadata.h
+++ b/src/net/cert/ev_root_ca_metadata.h
@@ -17,7 +17,7 @@
 #include "net/cert/x509_certificate.h"
 
 #if defined(USE_NSS_CERTS) || defined(OS_WIN) || defined(OS_APPLE) || \
-    defined(OS_FUCHSIA)
+    defined(OS_FUCHSIA) || defined(OS_ANDROID) || defined(OS_LINUX)
 // When not defined, the EVRootCAMetadata singleton is a dumb placeholder
 // implementation that will fail all EV lookup operations.
 #define PLATFORM_USES_CHROMIUM_EV_METADATA