gpu: Make the log of texture binding failure more specific.

gpu/command_buffer/service/gles2_cmd_decoder.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder.cc b/gpu/command_buffer/service/gles2_cmd_decoder.cc
index 0870c36b889bcd266ba85c623819e3152fa514b6..c86275ab757dc56b05c6b8c76b70d47e0aaadf1e 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder.cc
@@ -6427,12 +6427,18 @@ bool GLES2DecoderImpl::PrepareTexturesForRender() {
           glBindTexture(
               textarget,
               texture_manager()->black_texture_id(uniform_info->type));
-          LOCAL_RENDER_WARNING(
-              std::string("texture bound to texture unit ") +
-              base::IntToString(texture_unit_index) +
-              " is not renderable. It maybe non-power-of-2 and have"
-              " incompatible texture filtering or is not"
-              " 'texture complete'");
+          if (!texture_ref) {
+            LOCAL_RENDER_WARNING(
+                std::string("texture bound to texture unit ") +

[no sievers, 2015/01/13 20:21:01]

Isn't it rather that there is no texture bound to the unit?

[dshwang, 2015/01/14 14:41:55]

Done.

+                base::IntToString(texture_unit_index) +
+                " is not renderable due to not 'texture complete'");
+          } else {
+            LOCAL_RENDER_WARNING(
+                std::string("texture bound to texture unit ") +
+                base::IntToString(texture_unit_index) +
+                " is not renderable. It maybe non-power-of-2 and have"
+                " incompatible texture filtering");

[no sievers, 2015/01/13 20:21:01]

and if it's not renderable it could also be because it's not complete?

[dshwang, 2015/01/14 14:41:55]

Yes, I think that "not renderable" is same meaning to "not complete". I removed
"not complete" term in the log.

+          }
           continue;
         }