[ScreenOrientation] Add use counters.

Source/modules/screen_orientation/ScreenOrientation.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/screen_orientation/ScreenOrientation.h"
 
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/frame/LocalFrame.h"
+#include "core/frame/UseCounter.h"
 #include "modules/EventTargetModules.h"
 #include "modules/screen_orientation/LockOrientationCallback.h"
 #include "modules/screen_orientation/ScreenOrientationController.h"
 #include "public/platform/WebScreenOrientationType.h"
 
 // This code assumes that WebScreenOrientationType values are included in WebScreenOrientationLockType.
 #define COMPILE_ASSERT_MATCHING_ENUM(enum1, enum2) \
     COMPILE_ASSERT(static_cast<unsigned>(blink::enum1) == static_cast<unsigned>(blink::enum2), mismatching_types)
 COMPILE_ASSERT_MATCHING_ENUM(WebScreenOrientationPortraitPrimary, WebScreenOrientationLockPortraitPrimary);
 COMPILE_ASSERT_MATCHING_ENUM(WebScreenOrientationPortraitSecondary, WebScreenOrientationLockPortraitSecondary);
@@ skipping 95 matching lines @@
 
 ExecutionContext* ScreenOrientation::executionContext() const
 {
     if (!m_frame)
         return 0;
     return m_frame->document();
 }
 
 String ScreenOrientation::type() const
 {
+    if (m_frame)

[Peter Beverloo, 2014/10/02 12:30:07]

Please move these to ScreenOrientation.idl using the [MeasureAs] annotation.

+        UseCounter::count(m_frame->document(), UseCounter::ScreenOrientationType);
     return orientationTypeToString(m_type);
 }
 
 unsigned short ScreenOrientation::angle() const
 {
+    if (m_frame)
+        UseCounter::count(m_frame->document(), UseCounter::ScreenOrientationAngle);
     return m_angle;
 }
 
 void ScreenOrientation::setType(WebScreenOrientationType type)
 {
     m_type = type;
 }
 
 void ScreenOrientation::setAngle(unsigned short angle)
 {
     m_angle = angle;
 }
 
 ScriptPromise ScreenOrientation::lock(ScriptState* state, const AtomicString& lockString)
 {
     RefPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(state);
     ScriptPromise promise = resolver->promise();
 
     Document* document = m_frame ? m_frame->document() : 0;
+    UseCounter::count(document, UseCounter::ScreenOrientationLock);
 
     if (!document || !controller()) {
         RefPtrWillBeRawPtr<DOMException> exception = DOMException::create(InvalidStateError, "The object is no longer associated to a document.");
         resolver->reject(exception);
         return promise;
     }
 
     if (document->isSandboxed(SandboxOrientationLock)) {
         RefPtrWillBeRawPtr<DOMException> exception = DOMException::create(SecurityError, "The document is sandboxed and lacks the 'allow-orientation-lock' flag.");
         resolver->reject(exception);
@@ skipping 20 matching lines @@
     return ScreenOrientationController::from(*m_frame);
 }
 
 void ScreenOrientation::trace(Visitor* visitor)
 {
     EventTargetWithInlineData::trace(visitor);
     DOMWindowProperty::trace(visitor);
 }
 
 } // namespace blink