Fix sky include guards to match Chromium style

sky/engine/bindings/core/v8/V8BindingMacros.h

 /*
  * Copyright (C) 2010 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 10 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 V8BindingMacros_h
-#define V8BindingMacros_h
+#ifndef SKY_ENGINE_BINDINGS_CORE_V8_V8BINDINGMACROS_H_
+#define SKY_ENGINE_BINDINGS_CORE_V8_V8BINDINGMACROS_H_
 
 namespace blink {
 
 // Naming scheme:
 // TO*_RETURNTYPE[_ARGTYPE]...
 // ...using _DEFAULT instead of _ANY..._ANY when returing a default value.
 
 #define TONATIVE_EXCEPTION(type, var, value) \
     type var;                                \
     {                                        \
@@ skipping 119 matching lines @@
 
 #define TOSTRING_VOID_PROMISE(type, var, value, info)           \
     type var;                                                   \
     {                                                           \
         v8::TryCatch block;                                     \
         TOSTRING_VOID_PROMISE_INTERNAL(type, var, value, info); \
     }
 
 } // namespace blink
 
-#endif // V8BindingMacros_h
+#endif  // SKY_ENGINE_BINDINGS_CORE_V8_V8BINDINGMACROS_H_