fixed build after r9027

modules/gpu/include/opencv2/gpu/gpu.hpp

@@ -1437,7 +1437,6 @@ public:
 
     int detectMultiScale(const GpuMat& image, GpuMat& objectsBuf, double scaleFactor = 1.1, int minNeighbors = 4,
     cv::Size maxObjectSize = cv::Size()/*, Size minSize = Size()*/);
-    void preallocateIntegralBuffer(cv::Size desired);
     Size getClassifierSize() const;
 private:
     bool read(const FileNode &root);

modules/gpu/src/cascadeclassifier.cpp

@@ -67,8 +67,7 @@ cv::gpu::CascadeClassifier_GPU_LBP::~CascadeClassifier_GPU_LBP()
 bool cv::gpu::CascadeClassifier_GPU_LBP::empty() const                               { throw_nogpu(); return true; }
 bool cv::gpu::CascadeClassifier_GPU_LBP::load(const string&)                         { throw_nogpu(); return true; }
 Size cv::gpu::CascadeClassifier_GPU_LBP::getClassifierSize() const                   { throw_nogpu(); return Size(); }
-void cv::gpu::CascadeClassifier_GPU_LBP::preallocateIntegralBuffer(cv::Size /*desired*/) { throw_nogpu();}
-void cv::gpu::CascadeClassifier_GPU_LBP::initializeBuffers(cv::Size /*frame*/)       { throw_nogpu();}
+void cv::gpu::CascadeClassifier_GPU_LBP::allocateBuffers(cv::Size /*frame*/)       { throw_nogpu();}
 
 int cv::gpu::CascadeClassifier_GPU_LBP::detectMultiScale(const cv::gpu::GpuMat& /*image*/, cv::gpu::GpuMat& /*objectsBuf*/,
 double /*scaleFactor*/, int /*minNeighbors*/, cv::Size /*maxObjectSize*/){ throw_nogpu(); return 0;}
@@ -103,13 +102,6 @@ void cv::gpu::CascadeClassifier_GPU_LBP::allocateBuffers(cv::Size frame)
     candidates.create(1 , frame.width >> 1, CV_32SC4);
 }
 
-
-
-void cv::gpu::CascadeClassifier_GPU_LBP::preallocateIntegralBuffer(cv::Size desired)
-{
-    integral.create(desired.width + 1, desired.height + 1, CV_32SC1);
-}
-
 bool cv::gpu::CascadeClassifier_GPU_LBP::empty() const { return stage_mat.empty(); }
 Size cv::gpu::CascadeClassifier_GPU_LBP::getClassifierSize() const { return NxM; }