Fix sky include guards to match Chromium style

sky/engine/bindings/core/v8/V8Binding.h

 /*
 * Copyright (C) 2009 Google Inc. All rights reserved.
 * Copyright (C) 2012 Ericsson AB. 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.
@@ skipping 11 matching lines @@
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * 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 V8Binding_h
-#define V8Binding_h
+#ifndef SKY_ENGINE_BINDINGS_CORE_V8_V8BINDING_H_
+#define SKY_ENGINE_BINDINGS_CORE_V8_V8BINDING_H_
 
 #include "sky/engine/bindings/core/v8/DOMWrapperWorld.h"
 #include "sky/engine/bindings/core/v8/ExceptionMessages.h"
 #include "sky/engine/bindings/core/v8/ScriptValue.h"
 #include "sky/engine/bindings/core/v8/ScriptWrappable.h"
 #include "sky/engine/bindings/core/v8/V8BindingMacros.h"
 #include "sky/engine/bindings/core/v8/V8PerIsolateData.h"
 #include "sky/engine/bindings/core/v8/V8StringResource.h"
 #include "sky/engine/bindings/core/v8/V8ThrowException.h"
 #include "sky/engine/bindings/core/v8/V8ValueCache.h"
@@ skipping 713 matching lines @@
         // ReThrow() is a no-op if no exception has been caught, so always call.
         m_block.ReThrow();
     }
 
 private:
     v8::TryCatch& m_block;
 };
 
 } // namespace blink
 
-#endif // V8Binding_h
+#endif  // SKY_ENGINE_BINDINGS_CORE_V8_V8BINDING_H_