Fix typos in web_package

Some typo and suggested corrections.

Bug: 803774

Change-Id: Ia695bb55f52b9c5777c6ace22db5fcf093c948f7
Reviewed-on: https://chromium-review.googlesource.com/1203371Reviewed-by: Kouhei Ueno <kouhei@chromium.org>
Commit-Queue: Rob Buis <rbuis@igalia.com>
Cr-Commit-Position: refs/heads/master@{#588480}

content/browser/web_package/signed_exchange_certificate_chain.h

@@ -46,7 +46,6 @@ class CONTENT_EXPORT SignedExchangeCertificateChain {
  private:
   scoped_refptr<net::X509Certificate> cert_;
 
-  // Version b1 specific fields:
   std::string ocsp_;
   std::string sct_;
 };

content/browser/web_package/signed_exchange_envelope.cc

@@ -23,7 +23,7 @@ namespace content {
 
 namespace {
 
-// IsStateful{Request,Response}Header return true if |name| is a stateful
+// IsStateful{Request,Response}Header returns true if |name| is a stateful
 // header field. Stateful header fields will cause validation failure of
 // signed exchanges.
 // Note that |name| must be lower-cased.
@@ -210,7 +210,7 @@ bool ParseResponseMap(const cbor::CBORValue& value,
       return false;
     }
 
-    // 4. If exchange’s headers contain a stateful header field, as defined in
+    // 4. If exchange’s headers contains a stateful header field, as defined in
     // Section 4.1, return “invalid”. [spec text]
     if (IsStatefulResponseHeader(name_str)) {
       signed_exchange_utils::ReportErrorAndTraceEvent(

content/browser/web_package/signed_exchange_envelope.h

@@ -33,7 +33,7 @@ class CONTENT_EXPORT SignedExchangeEnvelope {
   // Parse headers from the application/signed-exchange;v=b2 format.
   // https://wicg.github.io/webpackage/draft-yasskin-httpbis-origin-signed-exchanges-impl.html#application-signed-exchange
   //
-  // This also performs the step 1, 3 and 4 of "Cross-origin trust" validation.
+  // This also performs the steps 1, 3 and 4 of "Cross-origin trust" validation.
   // https://wicg.github.io/webpackage/draft-yasskin-httpbis-origin-signed-exchanges-impl.html#cross-origin-trust
   static base::Optional<SignedExchangeEnvelope> Parse(
       const GURL& fallback_url,

content/browser/web_package/signed_exchange_handler.cc

@@ -140,7 +140,7 @@ SignedExchangeHandler::SignedExchangeHandler(
   if (!IsSupportedSignedExchangeVersion(version_)) {
     signed_exchange_utils::ReportErrorAndTraceEvent(
         devtools_proxy_.get(),
-        base::StringPrintf("Unsupported version of the content type. Currentry "
+        base::StringPrintf("Unsupported version of the content type. Currently "
                            "content type must be "
                            "\"application/signed-exchange;v=b2\". But the "
                            "response content type was \"%s\"",

content/browser/web_package/signed_exchange_handler.h

@@ -45,12 +45,12 @@ class SignedExchangeCertificateChain;
 class SignedExchangeDevToolsProxy;
 
 // SignedExchangeHandler reads "application/signed-exchange" format from a
-// net::SourceStream, parse and verify the signed exchange, and report
+// net::SourceStream, parses and verifies the signed exchange, and reports
 // the result asynchronously via SignedExchangeHandler::ExchangeHeadersCallback.
 //
 // Note that verifying a signed exchange requires an associated certificate
 // chain. SignedExchangeHandler creates a SignedExchangeCertFetcher to
-// fetch the certificate chain over network, and verify it with the
+// fetch the certificate chain over the network, and verifies it with the
 // net::CertVerifier.
 class CONTENT_EXPORT SignedExchangeHandler {
  public:

content/browser/web_package/signed_exchange_signature_header_field.h

@@ -21,7 +21,7 @@ namespace content {
 
 class SignedExchangeDevToolsProxy;
 
-// SignedExchangeSignatureHeaderField provides parser for signed exchange's
+// SignedExchangeSignatureHeaderField provides a parser for signed exchange's
 // `Signature` header field.
 // https://wicg.github.io/webpackage/draft-yasskin-httpbis-origin-signed-exchanges-impl.html
 class CONTENT_EXPORT SignedExchangeSignatureHeaderField {