nanobench: support GMs-as-benches

nanobench: support GMs-as-benches

BUG=skia:

Committed: https://skia.googlesource.com/skia/+/e714e75c725c987fe682a1f5473224fe3e80380d

[mtklein, 2014-07-31 18:44:26]

This produces JSON like this:

{  
   "gitHash":"unknown-revision",
   "options":{  
      "system":"UNIX"
   },
   "results":{  
      "GM:circular-clips_800_600":{  
         "565":{  
            "max_ms":4.385410,
            "mean_ms":4.385410,
            "median_ms":4.385410,
            "min_ms":4.385410,
            "options":{  
               "source_type":"gm"
            }
         },
         "8888":{  
            "max_ms":5.7266560,
            "mean_ms":5.7266560,
            "median_ms":5.7266560,
            "min_ms":5.7266560,
            "options":{  
               "source_type":"gm"
            }
         },
         "gpu":{  
            "max_ms":13.455720,
            "mean_ms":13.455720,
            "median_ms":13.455720,
            "min_ms":13.455720,
            "options":{  
               "GL_RENDERER":"Quadro 600/PCIe/SSE2",
               "GL_SHADING_LANGUAGE_VERSION":"4.40 NVIDIA via Cg compiler",
               "GL_VENDOR":"NVIDIA Corporation",
               "GL_VERSION":"4.4.0 NVIDIA 331.67",
               "source_type":"gm"
            }
         }
      },
...

[jcgregorio, 2014-07-31 18:49:43]

On 2014/07/31 18:44:26, mtklein wrote:
> This produces JSON like this:
> 
> {  
>    "gitHash":"unknown-revision",
>    "options":{  
>       "system":"UNIX"
>    },
>    "results":{  
>       "GM:circular-clips_800_600":{  

Can you use GM_ instead of GM:? It would work much better with the
skiaperf UI where we make keys with the equivalent of ":".join(...).

>          "565":{  
>             "max_ms":4.385410,
>             "mean_ms":4.385410,
>             "median_ms":4.385410,
>             "min_ms":4.385410,
>             "options":{  
>                "source_type":"gm"
>             }
>          },
>          "8888":{  
>             "max_ms":5.7266560,
>             "mean_ms":5.7266560,
>             "median_ms":5.7266560,
>             "min_ms":5.7266560,
>             "options":{  
>                "source_type":"gm"
>             }
>          },
>          "gpu":{  
>             "max_ms":13.455720,
>             "mean_ms":13.455720,
>             "median_ms":13.455720,
>             "min_ms":13.455720,
>             "options":{  
>                "GL_RENDERER":"Quadro 600/PCIe/SSE2",
>                "GL_SHADING_LANGUAGE_VERSION":"4.40 NVIDIA via Cg compiler",
>                "GL_VENDOR":"NVIDIA Corporation",
>                "GL_VERSION":"4.4.0 NVIDIA 331.67",
>                "source_type":"gm"
>             }
>          }
>       },
> ...

[mtklein, 2014-07-31 18:56:12]

> Can you use GM_ instead of GM:? It would work much better with the
> skiaperf UI where we make keys with the equivalent of ":".join(...).

Of course.  Done.

[jcgregorio, 2014-07-31 18:56:57]

On 2014/07/31 18:56:12, mtklein wrote:
> > Can you use GM_ instead of GM:? It would work much better with the
> > skiaperf UI where we make keys with the equivalent of ":".join(...).
> 
> Of course.  Done.

LGTM for the JSON output.

[mtklein, 2014-07-31 19:01:48]

The CQ bit was checked by mtklein@google.com

[commit-bot: I haz the power, 2014-07-31 19:02:36]

CQ is trying da patch. Follow status at
 https://skia-tree-status.appspot.com/cq/mtklein@chromium.org/438683002/20001

[commit-bot: I haz the power, 2014-07-31 19:13:52]

Change committed as e714e75c725c987fe682a1f5473224fe3e80380d