Move GrGLBufferImpl's GL calls to behind GrGLGpu

src/gpu/GrGpu.h

Index: src/gpu/GrGpu.h
diff --git a/src/gpu/GrGpu.h b/src/gpu/GrGpu.h
index 4714d36913fa3da4a435ea6e040fbabaf512f544..1b11c18b0661e8e22fe8691bc72025576fde8d6f 100644
--- a/src/gpu/GrGpu.h
+++ b/src/gpu/GrGpu.h
@@ -411,6 +411,12 @@ protected:
         *preference = SkTMax(*preference, elevation);
     }
 
+    void handleDirtyContext() {
+        if (fResetBits) {
+            this->resetContext();
+        }
+    }
+
     Stats                                   fStats;
     SkAutoTDelete<GrPathRendering>          fPathRendering;
     // Subclass must initialize this in its constructor.
@@ -486,12 +492,6 @@ private:
         ++fResetTimestamp;
     }
 
-    void handleDirtyContext() {
-        if (fResetBits) {
-            this->resetContext();
-        }
-    }
-
     ResetTimestamp                                                      fResetTimestamp;
     uint32_t                                                            fResetBits;
     // The context owns us, not vice-versa, so this ptr is not ref'ed by Gpu.