Apply renaming of ppapi shared stuff to new ppb_var shared code.

ppapi/shared_impl/ppb_var_shared.h

Index: ppapi/shared_impl/ppb_var_shared.h
diff --git a/ppapi/shared_impl/ppb_var_impl.h b/ppapi/shared_impl/ppb_var_shared.h
similarity index 73%
rename from ppapi/shared_impl/ppb_var_impl.h
rename to ppapi/shared_impl/ppb_var_shared.h
index 0ff0c6ac35663d106834bca06c32b38e8ea4c13d..dfdf47278406e1fc1b80902d7309f8396fd1df5c 100644
--- a/ppapi/shared_impl/ppb_var_impl.h
+++ b/ppapi/shared_impl/ppb_var_shared.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef PPAPI_SHARED_IMPL_PPB_VAR_IMPL_H_
-#define PPAPI_SHARED_IMPL_PPB_VAR_IMPL_H_
+#ifndef PPAPI_SHARED_IMPL_PPB_VAR_SHARED_H_
+#define PPAPI_SHARED_IMPL_PPB_VAR_SHARED_H_
 
 #include "ppapi/c/pp_module.h"
 #include "ppapi/c/pp_stdint.h"
@@ -15,7 +15,7 @@ struct PPB_Var_1_0;
 
 namespace ppapi {
 
-class PPAPI_SHARED_EXPORT PPB_Var_Impl {
+class PPAPI_SHARED_EXPORT PPB_Var_Shared {
  public:
   static const PPB_Var* GetVarInterface();
   static const PPB_Var_1_0* GetVarInterface1_0();
@@ -23,4 +23,4 @@ class PPAPI_SHARED_EXPORT PPB_Var_Impl {
 
 }  // namespace ppapi
 
-#endif  // PPAPI_SHARED_IMPL_PPB_VAR_IMPL_H_
+#endif  // PPAPI_SHARED_IMPL_PPB_VAR_SHARED_H_