Make android directory for Android-specific bits of SkyShell

sky/shell/android/platform_service_provider.h

Index: sky/shell/android/platform_service_provider.h
diff --git a/sky/shell/sky_main.h b/sky/shell/android/platform_service_provider.h
similarity index 54%
copy from sky/shell/sky_main.h
copy to sky/shell/android/platform_service_provider.h
index 6913690e894700112fc9e952b670a5a8a2f01ccc..679c7640e8ab8298ab62c5a5615ed44bf2633389 100644
--- a/sky/shell/sky_main.h
+++ b/sky/shell/android/platform_service_provider.h
@@ -2,17 +2,17 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SKY_SHELL_SKY_MAIN_H_
-#define SKY_SHELL_SKY_MAIN_H_
+#ifndef SKY_SHELL_ANDROID_PLATFORM_SERVICE_PROVIDER_H_
+#define SKY_SHELL_ANDROID_PLATFORM_SERVICE_PROVIDER_H_
 
 #include <jni.h>
 
 namespace sky {
 namespace shell {
 
-bool RegisterSkyMain(JNIEnv* env);
+bool RegisterPlatformServiceProvider(JNIEnv* env);
 
 }  // namespace shell
 }  // namespace sky
 
-#endif  // SKY_SHELL_SKY_MAIN_H_
+#endif  // SKY_SHELL_ANDROID_PLATFORM_SERVICE_PROVIDER_H_