Cleaning up trailing spaces and typos.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1631993002

Review URL: https://codereview.chromium.org/1631993002
diff --git a/include/gpu/GrSurface.h b/include/gpu/GrSurface.h
index 2893500..b59d802 100644
--- a/include/gpu/GrSurface.h
+++ b/include/gpu/GrSurface.h
@@ -100,8 +100,8 @@
      *                      packed.
      * @param pixelOpsFlags See the GrContext::PixelOpsFlags enum.
      *
-     * @return true if the read succeeded, false if not. The read can fail because of an unsupported
-     *              pixel config.
+     * @return true if the read succeeded, false if not. The read can fail because of an
+     *              unsupported pixel config.
      */
     bool writePixels(int left, int top, int width, int height,
                      GrPixelConfig config,