Cleanup include guards:

src/arm/frames-arm.h

Index: src/arm/frames-arm.h
diff --git a/src/arm/frames-arm.h b/src/arm/frames-arm.h
index 930f6e0e0bd391fdb887fc000fede5bfb6a244a0..9a18f3d93b972f4b9cdbbd2d0bef1421609d5a63 100644
--- a/src/arm/frames-arm.h
+++ b/src/arm/frames-arm.h
@@ -25,8 +25,8 @@
 // (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 V8_FRAMES_ARM_H_
-#define V8_FRAMES_ARM_H_
+#ifndef V8_ARM_FRAMES_ARM_H_
+#define V8_ARM_FRAMES_ARM_H_
 
 namespace v8 { namespace internal {
 
@@ -376,4 +376,4 @@ inline Object* JavaScriptFrame::function_slot_object() const {
 
 } }  // namespace v8::internal
 
-#endif  // V8_FRAMES_ARM_H_
+#endif  // V8_ARM_FRAMES_ARM_H_