Deny the geolocation permission request by default.

android_webview/native/aw_contents.cc

Index: android_webview/native/aw_contents.cc
diff --git a/android_webview/native/aw_contents.cc b/android_webview/native/aw_contents.cc
index d92640407a20a6f15e71cc9ae7029ef0c4c8b494..58782a83c208964e36fded331efb7e40a849e4ac 100644
--- a/android_webview/native/aw_contents.cc
+++ b/android_webview/native/aw_contents.cc
@@ -491,11 +491,8 @@ void AwContents::InvokeGeolocationCallback(JNIEnv* env,
                                            jboolean value,
                                            jstring origin) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
-  if (pending_geolocation_prompts_.empty()) {
-    LOG(WARNING) << "Response for this geolocation request has been received."
-                 << " Ignoring subsequent responses";
+  if (pending_geolocation_prompts_.empty())
     return;
-  }
 
   GURL callback_origin(base::android::ConvertJavaStringToUTF16(env, origin));
   if (callback_origin.GetOrigin() ==
@@ -506,9 +503,6 @@ void AwContents::InvokeGeolocationCallback(JNIEnv* env,
       ShowGeolocationPromptHelper(java_ref_,
                                   pending_geolocation_prompts_.front().first);
     }
-  } else {
-    LOG(WARNING) << "Response for this geolocation request has been received."
-                 << " Ignoring subsequent responses";
   }
 }