[Sensors] Consider maximum supported frequency

third_party/WebKit/Source/modules/sensor/SensorProxy.cpp

Index: third_party/WebKit/Source/modules/sensor/SensorProxy.cpp
diff --git a/third_party/WebKit/Source/modules/sensor/SensorProxy.cpp b/third_party/WebKit/Source/modules/sensor/SensorProxy.cpp
index add04b99327deacdb576b82b73261f851d955c05..d83362e6f5a58deefecac3aa770e43b7f9d79a31 100644
--- a/third_party/WebKit/Source/modules/sensor/SensorProxy.cpp
+++ b/third_party/WebKit/Source/modules/sensor/SensorProxy.cpp
@@ -20,7 +20,8 @@ SensorProxy::SensorProxy(SensorType sensorType, SensorProviderProxy* provider)
       m_clientBinding(this),
       m_state(SensorProxy::Uninitialized),
       m_reading(),
-      m_suspended(false) {}
+      m_suspended(false),
+      m_maximumFrequency(0.0) {}
 
 SensorProxy::~SensorProxy() {}
 
@@ -98,6 +99,10 @@ const device::mojom::blink::SensorConfiguration* SensorProxy::defaultConfig()
   return m_defaultConfig.get();
 }
 
+double SensorProxy::maximumFrequency() const {
+  return m_maximumFrequency;
+}
+
 void SensorProxy::updateInternalReading() {
   DCHECK(isInitialized());
   int readAttempts = 0;
@@ -168,6 +173,9 @@ void SensorProxy::onSensorCreated(SensorInitParamsPtr params,
     return;
   }
 
+  m_maximumFrequency = params->maximum_frequency;
+  DCHECK(m_maximumFrequency <= SensorConfiguration::kMaxAllowedFrequency);
+
   auto errorCallback =
       WTF::bind(&SensorProxy::handleSensorError, wrapWeakPersistent(this),
                 UnknownError, String("Internal error"), String());