Fix a few clang errors while trying to build tools target.

src/gpu/gl/debug/GrDebugGL.h

 
 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrDebugGL_DEFINED
 #define GrDebugGL_DEFINED
@@ skipping 104 matching lines @@
     }
 
 protected:
 
 private:
     // the OpenGLES 2.0 spec says this must be >= 2
     static const GrGLint kDefaultMaxTextureUnits = 8;
 
     GrGLint         fPackRowLength;
     GrGLint         fUnPackRowLength;
-    GrGLuint        fMaxTextureUnits;
     GrGLuint        fCurTextureUnit;
     GrBufferObj*    fArrayBuffer;
     GrBufferObj*    fElementArrayBuffer;
     GrFrameBufferObj* fFrameBuffer;
     GrRenderBufferObj* fRenderBuffer;
     GrProgramObj* fProgram;
     GrTextureObj* fTexture;
     GrTextureUnitObj *fTextureUnits[kDefaultMaxTextureUnits];
     GrVertexArrayObj *fVertexArray;
 
@@ skipping 16 matching lines @@
 // type) easier
 #define GR_CREATE(className, classEnum)                     \
     reinterpret_cast<className *>(GrDebugGL::getInstance()->createObj(classEnum))
 
 ////////////////////////////////////////////////////////////////////////////////
 // Helper macro to make finding objects less painful
 #define GR_FIND(id, className, classEnum)                   \
     reinterpret_cast<className *>(GrDebugGL::getInstance()->findObject(id, classEnum))
 
 #endif // GrDebugGL_DEFINED