IndexedDB: Add histograms for key type

third_party/WebKit/Source/bindings/modules/v8/V8BindingForModules.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 78 matching lines @@
     // values as undefined, rather than the more typical (for DOM) null.
     // This appears on the |upper| and |lower| attributes of IDBKeyRange.
     // Spec: http://www.w3.org/TR/IndexedDB/#idl-def-IDBKeyRange
     return v8Undefined();
   }
 
   v8::Local<v8::Context> context = isolate->GetCurrentContext();
 
   switch (key->getType()) {
     case IDBKey::InvalidType:
-    case IDBKey::MinType:
       ASSERT_NOT_REACHED();
       return v8Undefined();
     case IDBKey::NumberType:
       return v8::Number::New(isolate, key->number());
     case IDBKey::StringType:
       return v8String(isolate, key->string());
     case IDBKey::BinaryType:
       // Experimental feature: binary keys
       // https://w3c.github.io/IndexedDB/#steps-to-convert-a-key-to-a-value
       return ToV8(DOMArrayBuffer::create(reinterpret_cast<const unsigned char*>(
@@ skipping 507 matching lines @@
   if (expectedKey && expectedKey->isEqual(value->primaryKey()))
     return;
 
   bool injected = injectV8KeyIntoV8Value(
       isolate, keyValue.v8Value(), scriptValue.v8Value(), value->keyPath());
   DCHECK(injected);
 }
 #endif
 
 }  // namespace blink