Componentization: make core/dom visible for blink_web and blink_tests.

Source/core/dom/DocumentLifecycle.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef DocumentLifecycle_h
 #define DocumentLifecycle_h
 
+#include "core/CoreExport.h"
 #include "wtf/Assertions.h"
 #include "wtf/Noncopyable.h"
 
 namespace blink {
 
-class DocumentLifecycle {
+class CORE_EXPORT DocumentLifecycle {
     WTF_MAKE_NONCOPYABLE(DocumentLifecycle);
 public:
     enum State {
         Uninitialized,
         Inactive,
 
         // When the document is active, it traverses these states.
 
         VisualUpdatePending,
 
@@ skipping 124 matching lines @@
 inline bool DocumentLifecycle::stateAllowsLayoutInvalidation() const
 {
     return m_state != InPerformLayout
         && m_state != InCompositingUpdate
         && m_state != InPaintInvalidation;
 }
 
 } // namespace blink
 
 #endif