bluetooth: Extend navigator.bluetooth IDL to include Bluetooth interface.

Source/modules/bluetooth/NavigatorBluetooth.cpp

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "config.h"
+#include "modules/bluetooth/NavigatorBluetooth.h"
+
+#include "core/frame/Navigator.h"
+#include "modules/bluetooth/Bluetooth.h"
+
+namespace blink {
+
+NavigatorBluetooth& NavigatorBluetooth::from(Navigator& navigator)
+{
+    NavigatorBluetooth* supplement = static_cast<NavigatorBluetooth*>(WillBeHeapSupplement<Navigator>::from(navigator, supplementName()));
+    if (!supplement) {
+        supplement = new NavigatorBluetooth();
+        provideTo(navigator, supplementName(), adoptPtrWillBeNoop(supplement));
+    }
+    return *supplement;
+}
+
+Bluetooth* NavigatorBluetooth::bluetooth(Navigator& navigator)
+{
+    return NavigatorBluetooth::from(navigator).bluetooth();
+}
+
+Bluetooth* NavigatorBluetooth::bluetooth() const
+{
+    if (!m_bluetooth)
+        m_bluetooth = Bluetooth::create();

[scheib, 2014/10/08 00:06:10]

Compile error:
../../third_party/WebKit/Source/modules/bluetooth/NavigatorBluetooth.cpp:31:21:
error: no viable overloaded '='
        m_bluetooth = Bluetooth::create();
        ~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~
../../third_party/WebKit/Source/platform/heap/Handle.h:584:17: note: candidate
function not viable: 'this' argument has type 'const
blink::Persistent<Bluetooth>', but method is not marked const
    Persistent& operator=(const Persistent& other)
                ^
../../third_party/WebKit/Source/platform/heap/Handle.h:533:17: note: candidate
function not viable: 'this' argument has type 'const
blink::Persistent<Bluetooth>', but method is not marked const
    Persistent& operator=(U* other)
                ^
../../third_party/WebKit/Source/platform/heap/Handle.h:503:5: note: candidate
function not viable: 'this' argument has type 'const
blink::Persistent<Bluetooth>', but method is not marked const
    WTF_DISALLOW_ZERO_ASSIGNMENT(Persistent);
    ^
../../third_party/WebKit/Source/wtf/NullPtr.h:47:20: note: expanded from macro
'WTF_DISALLOW_ZERO_ASSIGNMENT'
        ClassName& operator=(int) = delete
                   ^
../../third_party/WebKit/Source/platform/heap/Handle.h:540:17: note: candidate
function not viable: 'this' argument has type 'const
blink::Persistent<Bluetooth>', but method is not marked const
    Persistent& operator=(std::nullptr_t)
                ^
../../third_party/WebKit/Source/platform/heap/Handle.h:592:17: note: candidate
template ignored: could not match 'Persistent<type-parameter-0-0,
blink::ThreadLocalPersistents<0> >' against 'blink::Bluetooth *'
    Persistent& operator=(const Persistent<U, RootsAccessor>& other)
                ^
../../third_party/WebKit/Source/platform/heap/Handle.h:600:17: note: candidate
template ignored: could not match 'Member<type-parameter-0-0>' against
'blink::Bluetooth *'
    Persistent& operator=(const Member<U>& other)
                ^
../../third_party/WebKit/Source/platform/heap/Handle.h:608:17: note: candidate
template ignored: could not match 'RawPtr<type-parameter-0-0>' against
'blink::Bluetooth *'
    Persistent& operator=(const RawPtr<U>& other)
                ^
1 error generated.

[tkent, 2014/10/08 00:23:41]

NavigatorBluetooth::bluetooth() is a const function. We can't update
m_bluetooth.

[scheib, 2014/10/08 05:49:31]

Done.

+    return m_bluetooth.get();
+}
+
+void NavigatorBluetooth::trace(Visitor* visitor)
+{
+    visitor->trace(m_bluetooth);
+    WillBeHeapSupplement<Navigator>::trace(visitor);
+}
+
+NavigatorBluetooth::NavigatorBluetooth()
+{
+}
+
+DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(NavigatorBluetooth);
+
+const char* NavigatorBluetooth::supplementName()
+{
+    return "NavigatorBluetooth";
+}
+
+} // namespace blink