Change "ximage" to "aom_image_t" in comments.

In test/external_frame_buffer_test.cc, rename CheckXImageFrameBuffer()
to CheckImageFrameBuffer().

Change-Id: Ic01fda75560527fd69fd8ddc040f175cb4530a04
diff --git a/aom/aom_frame_buffer.h b/aom/aom_frame_buffer.h
index fba4322..a715645 100644
--- a/aom/aom_frame_buffer.h
+++ b/aom/aom_frame_buffer.h
@@ -53,9 +53,9 @@
  * data. The callback is triggered when the decoder needs a frame buffer to
  * decode a compressed image into. This function may be called more than once
  * for every call to aom_codec_decode. The application may set fb->priv to
- * some data which will be passed back in the ximage and the release function
- * call. |fb| is guaranteed to not be NULL. On success the callback must
- * return 0. Any failure the callback must return a value less than 0.
+ * some data which will be passed back in the aom_image_t and the release
+ * function call. |fb| is guaranteed to not be NULL. On success the callback
+ * must return 0. Any failure the callback must return a value less than 0.
  *
  * \param[in] priv         Callback's private data
  * \param[in] new_size     Size in bytes needed by the buffer
diff --git a/test/external_frame_buffer_test.cc b/test/external_frame_buffer_test.cc
index e51eb9e..4938a64 100644
--- a/test/external_frame_buffer_test.cc
+++ b/test/external_frame_buffer_test.cc
@@ -114,9 +114,9 @@
     return 0;
   }
 
-  // Checks that the ximage data is contained within the external frame buffer
-  // private data passed back in the ximage.
-  void CheckXImageFrameBuffer(const aom_image_t *img) {
+  // Checks that the aom_image_t data is contained within the external frame
+  // buffer private data passed back in the aom_image_t.
+  void CheckImageFrameBuffer(const aom_image_t *img) {
     if (img->fb_priv != NULL) {
       const struct ExternalFrameBuffer *const ext_fb =
           reinterpret_cast<ExternalFrameBuffer *>(img->fb_priv);
@@ -359,7 +359,7 @@
 
     // Get decompressed data
     while ((img = dec_iter.Next()) != NULL) {
-      fb_list_.CheckXImageFrameBuffer(img);
+      fb_list_.CheckImageFrameBuffer(img);
     }
   }