cc: Render TextureLayer which texture target is not GL_TEXTURE_2D correctly.

cc/resources/resource_provider.h

Index: cc/resources/resource_provider.h
diff --git a/cc/resources/resource_provider.h b/cc/resources/resource_provider.h
index ea9588a2fd47958d4e3e58a5a608feaab7d6b93a..f7baac1e3bb1447b60b10bee6aef281a7904a778 100644
--- a/cc/resources/resource_provider.h
+++ b/cc/resources/resource_provider.h
@@ -223,14 +223,15 @@ class CC_EXPORT ResourceProvider {
                      ResourceProvider::ResourceId resource_id);
     virtual ~ScopedReadLockGL();
 
-    unsigned texture_id() const { return texture_id_; }
+    unsigned texture_id() const { return resource_->gl_id; }
+    GLenum target() const { return resource_->target; }
 
    protected:
     ResourceProvider* resource_provider_;
     ResourceProvider::ResourceId resource_id_;
 
    private:
-    unsigned texture_id_;
+    const ResourceProvider::Resource* resource_;
 
     DISALLOW_COPY_AND_ASSIGN(ScopedReadLockGL);
   };