Address clang static analyzer issues

src/gpu/gl/GrGpuGL.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "GrGpuGL.h"
 #include "GrGLStencilBuffer.h"
@@ skipping 2218 matching lines @@
     }
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 GrGLAttribArrayState* GrGpuGL::HWGeometryState::bindArrayAndBuffersToDraw(
                                                 GrGpuGL* gpu,
                                                 const GrGLVertexBuffer* vbuffer,
                                                 const GrGLIndexBuffer* ibuffer) {
     GrAssert(NULL != vbuffer);
-    GrGLAttribArrayState* attribState = &fDefaultVertexArrayAttribState;
+    GrGLAttribArrayState* attribState;
+
     // We use a vertex array if we're on a core profile and the verts are in a VBO.
     if (gpu->glCaps().isCoreProfile() && !vbuffer->isCPUBacked()) {
         if (NULL == fVBOVertexArray || !fVBOVertexArray->isValid()) {
             SkSafeUnref(fVBOVertexArray);
             GrGLuint arrayID;
             GR_GL_CALL(gpu->glInterface(), GenVertexArrays(1, &arrayID));
             int attrCount = gpu->glCaps().maxVertexAttributes();
             fVBOVertexArray = SkNEW_ARGS(GrGLVertexArray, (gpu, arrayID, attrCount));
         }
         attribState = fVBOVertexArray->bindWithIndexBuffer(ibuffer);
     } else {
         if (NULL != ibuffer) {
             this->setIndexBufferIDOnDefaultVertexArray(gpu, ibuffer->bufferID());
         } else {
             this->setVertexArrayID(gpu, 0);
         }
         int attrCount = gpu->glCaps().maxVertexAttributes();
         if (fDefaultVertexArrayAttribState.count() != attrCount) {
             fDefaultVertexArrayAttribState.resize(attrCount);
         }
         attribState = &fDefaultVertexArrayAttribState;
     }
     return attribState;
 }