Adopt unsigned long constant type into DOM

This CL made DOM understand unsigned long type what previously
had been recognized as int.

In addition, with this change, a failed test case will be passed in
http://w3c-test.org/dom/traversal/NodeFilter-constants.html

TEST=LayoutTests/fast/dom/constants.html

Behavior in other browsers:
*)FF: PASS
*)IE: PASS

Review URL: https://codereview.chromium.org/387263003

git-svn-id: svn://svn.chromium.org/blink/trunk@178025 bbb929c8-8fbe-4397-9dbb-9b2b20218538
WebAudio: Remove AudioNode::RefType.

The motivation of this CL is to reduce manual ref()/deref().

AudioNode has two types of ref()/deref(); RefTypeNormal and RefTypeConnection.
It made the code complex, and we couldn't use RefPtr<> for the connection type
references.

This CL removes AudioNode::RefType.
 - m_normalRefCount and m_connectionRefCount were updated independently. After
   this CL, connection type references updates both of them.
 - We use RefPtr<> for connection type references, and call
   AudioNode::makeConnection() and AudioNode::breakConnection() explicitly when
   connections are updated.

BUG=392788
TEST=none; This CL should not have behavior changes.

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=177910

Review URL: https://codereview.chromium.org/349213007

git-svn-id: svn://svn.chromium.org/blink/trunk@178026 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Rename webkit.dll to blink_web.dll.

So far this is the new name of this target.

BUG=None
TEST=None
R=abarth@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/384283002

git-svn-id: svn://svn.chromium.org/blink/trunk@178027 bbb929c8-8fbe-4397-9dbb-9b2b20218538