use forward declarations for framework.pb.h (#28494)

* use forward declarations for framework.pb.h, test=develop

* use forward declarations for framework.pb.h, test=develop

paddle/fluid/framework/op_registry.h

@@ -28,7 +28,6 @@ limitations under the License. */
 #include "glog/logging.h"               // For VLOG()
 #include "paddle/fluid/framework/attribute.h"
 #include "paddle/fluid/framework/details/op_registry.h"
-#include "paddle/fluid/framework/framework.pb.h"
 #include "paddle/fluid/framework/grad_op_desc_maker.h"
 #include "paddle/fluid/framework/op_desc.h"
 #include "paddle/fluid/framework/operator.h"
@@ -41,6 +40,33 @@ class ExecutionContext;
 }  // namespace framework
 }  // namespace paddle
 
+namespace paddle {
+namespace framework {
+namespace proto {
+
+class BlockDesc;
+class OpDesc;
+class OpDesc_Attr;
+class OpDesc_Var;
+class OpProto;
+class OpProto_Attr;
+class OpProto_Var;
+class OpVersion;
+class OpVersionMap;
+class OpVersionMap_OpVersionPair;
+class ProgramDesc;
+class VarDesc;
+class VarType;
+class VarType_LoDTensorArrayDesc;
+class VarType_LoDTensorDesc;
+class VarType_ReaderDesc;
+class VarType_TensorDesc;
+class VarType_Tuple;
+class Version;
+}  // namespace proto
+}  // namespace framework
+}  // namespace paddle
+
 namespace paddle {
 namespace framework {
 

paddle/fluid/framework/shape_inference.h

@@ -19,10 +19,36 @@ limitations under the License. */
 
 #include "paddle/fluid/framework/attribute.h"
 #include "paddle/fluid/framework/ddim.h"
-#include "paddle/fluid/framework/framework.pb.h"
 #include "paddle/fluid/framework/var_desc.h"
 #include "paddle/fluid/framework/variable.h"
 
+namespace paddle {
+namespace framework {
+namespace proto {
+
+class BlockDesc;
+class OpDesc;
+class OpDesc_Attr;
+class OpDesc_Var;
+class OpProto;
+class OpProto_Attr;
+class OpProto_Var;
+class OpVersion;
+class OpVersionMap;
+class OpVersionMap_OpVersionPair;
+class ProgramDesc;
+class VarDesc;
+class VarType;
+class VarType_LoDTensorArrayDesc;
+class VarType_LoDTensorDesc;
+class VarType_ReaderDesc;
+class VarType_TensorDesc;
+class VarType_Tuple;
+class Version;
+}  // namespace proto
+}  // namespace framework
+}  // namespace paddle
+
 namespace paddle {
 namespace framework {