Explicitly implement copy ctor/assignment operator for IndexedDBKey

The implicit implementations by the compiler are inlined, and lead
to ~8k of unnecessary code.

R=bratell@opera.com
BUG=333205

Review URL: https://codereview.chromium.org/136853003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244576 0039d316-1c4b-4281-b951-d872f2087c98

content/common/indexed_db/indexed_db_key.cc

@@ -50,6 +50,29 @@ IndexedDBKey::IndexedDBKey()
       number_(0),
       size_estimate_(kOverheadSize) {}
 
+IndexedDBKey::IndexedDBKey(const IndexedDBKey& other)
+    : type_(other.type_),
+      array_(other.array_),
+      binary_(other.binary_),
+      string_(other.string_),
+      date_(other.date_),
+      number_(other.number_),
+      size_estimate_(other.size_estimate_) {
+  DCHECK((!IsValid() && !other.IsValid()) || Compare(other) == 0);
+}
+
+IndexedDBKey& IndexedDBKey::operator=(const IndexedDBKey& other) {
+  type_ = other.type_;
+  array_ = other.array_;
+  binary_ = other.binary_;
+  string_ = other.string_;
+  date_ = other.date_;
+  number_ = other.number_;
+  size_estimate_ = other.size_estimate_;
+  DCHECK((!IsValid() && !other.IsValid()) || Compare(other) == 0);
+  return *this;
+}
+
 IndexedDBKey::IndexedDBKey(WebIDBKeyType type)
     : type_(type), date_(0), number_(0), size_estimate_(kOverheadSize) {
   DCHECK(type == WebIDBKeyTypeNull || type == WebIDBKeyTypeInvalid);

content/common/indexed_db/indexed_db_key.h

@@ -24,6 +24,9 @@ class CONTENT_EXPORT IndexedDBKey {
   typedef std::vector<IndexedDBKey> KeyArray;
 
   IndexedDBKey();  // Defaults to blink::WebIDBKeyTypeInvalid.
+  IndexedDBKey(const IndexedDBKey& other);
+  IndexedDBKey& operator=(const IndexedDBKey& other);
+
   IndexedDBKey(blink::WebIDBKeyType);  // must be Null or Invalid
   explicit IndexedDBKey(const KeyArray& array);
   explicit IndexedDBKey(const std::string& binary);