Remove some dependencies I stumbled upon

content/browser/in_process_webkit/indexed_db_dispatcher_host.cc

Index: content/browser/in_process_webkit/indexed_db_dispatcher_host.cc
diff --git a/content/browser/in_process_webkit/indexed_db_dispatcher_host.cc b/content/browser/in_process_webkit/indexed_db_dispatcher_host.cc
index ba6f4fa4baff25cd7ff8536fd5c444f2fc31d10e..b267f88f5f3ab136da8dfdf7cead4563f11e608b 100644
--- a/content/browser/in_process_webkit/indexed_db_dispatcher_host.cc
+++ b/content/browser/in_process_webkit/indexed_db_dispatcher_host.cc
@@ -21,11 +21,8 @@
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDOMStringList.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBCursor.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBDatabase.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBDatabaseError.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBFactory.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBIndex.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBKeyPath.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBKeyRange.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBMetadata.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBObjectStore.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBTransaction.h"
@@ -47,11 +44,8 @@ using WebKit::WebExceptionCode;
 using WebKit::WebIDBCallbacks;
 using WebKit::WebIDBCursor;
 using WebKit::WebIDBDatabase;
-using WebKit::WebIDBDatabaseError;
 using WebKit::WebIDBIndex;
 using WebKit::WebIDBKey;
-using WebKit::WebIDBKeyPath;
-using WebKit::WebIDBKeyRange;
 using WebKit::WebIDBMetadata;
 using WebKit::WebIDBObjectStore;
 using WebKit::WebIDBTransaction;