ImageCapture: support exposure mode configuration

media/capture/video/android/photo_capabilities.cc

Index: media/capture/video/android/photo_capabilities.cc
diff --git a/media/capture/video/android/photo_capabilities.cc b/media/capture/video/android/photo_capabilities.cc
index 3871477fa4b7827d898a591e903157eb8bb7c11a..1edbfaf66a62b6194fb87aa6d39d6bbe71fd4ecb 100644
--- a/media/capture/video/android/photo_capabilities.cc
+++ b/media/capture/video/android/photo_capabilities.cc
@@ -80,10 +80,16 @@ int PhotoCapabilities::getCurrentZoom() const {
   return Java_PhotoCapabilities_getCurrentZoom(AttachCurrentThread(), object_);
 }
 
-PhotoCapabilities::AndroidFocusMode PhotoCapabilities::getFocusMode() const {
+PhotoCapabilities::AndroidMeteringMode PhotoCapabilities::getFocusMode() const {
   DCHECK(!object_.is_null());
-  return static_cast<AndroidFocusMode>(
+  return static_cast<AndroidMeteringMode>(
       Java_PhotoCapabilities_getFocusMode(AttachCurrentThread(), object_));
 }
 
+PhotoCapabilities::AndroidMeteringMode PhotoCapabilities::getExposureMode()
+    const {
+  DCHECK(!object_.is_null());
+  return static_cast<AndroidMeteringMode>(
+      Java_PhotoCapabilities_getExposureMode(AttachCurrentThread(), object_));
+}
 }  // namespace media