Make GrGpuGL release its resources before GrGLInterface is released.

Forward declare GrGLInterface in GrGLDefaultInterface_none file

Review URL: http://codereview.appspot.com/5030049/


git-svn-id: http://skia.googlecode.com/svn/trunk@2278 2bbb7eff-a529-9590-31e7-b0007b416f81

gpu/src/GrGLDefaultInterface_none.cpp

@@ -6,6 +6,7 @@
  * found in the LICENSE file.
  */
 
+struct GrGLinterface;
 
 const GrGLInterface* GrGLDefaultInterface() {
     return NULL;

gpu/src/GrGpuGL.cpp

@@ -541,6 +541,9 @@ GrGpuGL::GrGpuGL(const GrGLInterface* gl, GrGLBinding glBinding)
 }
 
 GrGpuGL::~GrGpuGL() {
+    // This subclass must do this before the base class destructor runs
+    // since we will unref the GrGLInterface.
+    this->releaseResources();
     fGL->unref();
 }