Revert of Track GL buffer state based on unique resource ID

src/gpu/gl/GrGLVertexArray.h

Index: src/gpu/gl/GrGLVertexArray.h
diff --git a/src/gpu/gl/GrGLVertexArray.h b/src/gpu/gl/GrGLVertexArray.h
index 6b865bd62138d6a9c44d903fc4bb979fc7b28706..4a99d59058e2fc695bde13070ab6a29383bf3f2b 100644
--- a/src/gpu/gl/GrGLVertexArray.h
+++ b/src/gpu/gl/GrGLVertexArray.h
@@ -13,7 +13,6 @@
 #include "gl/GrGLTypes.h"
 #include "SkTArray.h"
 
-class GrGLBuffer;
 class GrGLGpu;
 
 /**
@@ -40,7 +39,7 @@
      */
     void set(GrGLGpu*,
              int attribIndex,
-             const GrGLBuffer* vertexBuffer,
+             GrGLuint vertexBufferID,
              GrVertexAttribType type,
              GrGLsizei stride,
              GrGLvoid* offset);
@@ -58,6 +57,16 @@
         }
     }
 
+    void notifyVertexBufferDelete(GrGLuint id) {
+        int count = fAttribArrayStates.count();
+        for (int i = 0; i < count; ++i) {
+            if (fAttribArrayStates[i].fAttribPointerIsValid &&
+                id == fAttribArrayStates[i].fVertexBufferID) {
+                fAttribArrayStates[i].invalidate();
+            }
+        }
+    }
+
     /**
      * The number of attrib arrays that this object is configured to track.
      */
@@ -70,12 +79,13 @@
     struct AttribArrayState {
             void invalidate() {
                 fEnableIsValid = false;
-                fVertexBufferUniqueID = SK_InvalidUniqueID;
+                fAttribPointerIsValid = false;
             }
 
             bool                  fEnableIsValid;
+            bool                  fAttribPointerIsValid;
             bool                  fEnabled;
-            uint32_t              fVertexBufferUniqueID;
+            GrGLuint              fVertexBufferID;
             GrVertexAttribType    fType;
             GrGLsizei             fStride;
             GrGLvoid*             fOffset;
@@ -103,7 +113,13 @@
      * This is a version of the above function that also binds an index buffer to the vertex
      * array object.
      */
-    GrGLAttribArrayState* bindWithIndexBuffer(GrGLGpu* gpu, const GrGLBuffer* indexBuffer);
+    GrGLAttribArrayState* bindWithIndexBuffer(GrGLGpu* gpu, GrGLuint indexBufferID);
+
+    void notifyIndexBufferDelete(GrGLuint bufferID);
+
+    void notifyVertexBufferDelete(GrGLuint id) {
+        fAttribArrays.notifyVertexBufferDelete(id);
+    }
 
     GrGLuint arrayID() const { return fID; }
 
@@ -112,7 +128,8 @@
 private:
     GrGLuint                fID;
     GrGLAttribArrayState    fAttribArrays;
-    uint32_t                fIndexBufferUniqueID;
+    GrGLuint                fIndexBufferID;
+    bool                    fIndexBufferIDIsValid;
 };
 
 #endif