Remove unused TransportSecurityState::IsGooglePinnedHost

R=rch@chromium.org

Review-Url: https://codereview.chromium.org/2914223002
Cr-Commit-Position: refs/heads/master@{#476325}

net/http/transport_security_state.cc

@@ -1625,25 +1625,6 @@ bool TransportSecurityState::GetStaticDomainState(const std::string& host,
   return true;
 }
 
-bool TransportSecurityState::IsGooglePinnedHost(const std::string& host) const {
-  DCHECK(CalledOnValidThread());
-
-  if (!IsBuildTimely())
-    return false;
-
-  PreloadResult result;
-  if (!DecodeHSTSPreload(host, &result))
-    return false;
-
-  if (!result.has_pins)
-    return false;
-
-  if (result.pinset_id >= arraysize(kPinsets))
-    return false;
-
-  return kPinsets[result.pinset_id].accepted_pins == kGoogleAcceptableCerts;
-}
-
 bool TransportSecurityState::GetDynamicSTSState(const std::string& host,
                                                 STSState* result) {
   DCHECK(CalledOnValidThread());

net/http/transport_security_state.h

@@ -484,12 +484,6 @@ class NET_EXPORT TransportSecurityState
                             STSState* sts_result,
                             PKPState* pkp_result) const;
 
-  // Returns true iff there is static (built-in) state for |host| that
-  // references the Google pins.
-  // TODO(rch): Remove this temporary gross layering violation once QUIC 32 is
-  // deployed.
-  bool IsGooglePinnedHost(const std::string& host) const;
-
   // Returns true and updates |*result| iff |host| has HSTS/HPKP/Expect-CT
   // (respectively) state. If multiple entries match |host|, the most specific
   // match determines the return value.