Create a minimal webkit_common static library for use in browser process

public/common/WebPrivateOwnPtr.h

Index: public/common/WebPrivateOwnPtr.h
diff --git a/public/platform/WebPrivateOwnPtr.h b/public/common/WebPrivateOwnPtr.h
similarity index 92%
copy from public/platform/WebPrivateOwnPtr.h
copy to public/common/WebPrivateOwnPtr.h
index 4bcabcfe685316b452e589fd980ef1e207aa9dae..ef581955b368319fce069ecc43085e5867d162f3 100644
--- a/public/platform/WebPrivateOwnPtr.h
+++ b/public/common/WebPrivateOwnPtr.h
@@ -26,11 +26,11 @@
 #ifndef WebPrivateOwnPtr_h
 #define WebPrivateOwnPtr_h
 
-#include "WebCommon.h"
+#include "WebAssertion.h"
 
 namespace WebKit {
 
-// This class is an implementation detail of the WebKit API.  It exists
+// This class is an implementation detail of the WebKit API. It exists
 // to help simplify the implementation of WebKit interfaces that merely
 // wrap a pointer to a WebCore class. It's similar to WebPrivatePtr, but it
 // wraps a naked pointer rather than a reference counted.
@@ -39,10 +39,10 @@ namespace WebKit {
 template <typename T>
 class WebPrivateOwnPtr {
 public:
-    WebPrivateOwnPtr() : m_ptr(0) {}
+    WebPrivateOwnPtr() : m_ptr(0) { }
     ~WebPrivateOwnPtr() { WEBKIT_ASSERT(!m_ptr); }
 
-#if WEBKIT_IMPLEMENTATION
+#if INSIDE_WEBKIT
     explicit WebPrivateOwnPtr(T* ptr)
         : m_ptr(ptr)
     {
@@ -61,7 +61,7 @@ public:
         WEBKIT_ASSERT(m_ptr);
         return m_ptr;
     }
-#endif // WEBKIT_IMPLEMENTATION
+#endif // INSIDE_WEBKIT
 
 private:
     T* m_ptr;