Files.app: Add metrics of RAW file loading time.

ui/file_manager/file_manager/common/js/metrics_events.js

Index: ui/file_manager/file_manager/common/js/metrics_events.js
diff --git a/ui/file_manager/file_manager/common/js/metrics_events.js b/ui/file_manager/file_manager/common/js/metrics_events.js
index a25dc1e9b774593c1f407555dee1116c347e2b59..5797813dac7b31f5ff35e059073a34a05e0fc18c 100644
--- a/ui/file_manager/file_manager/common/js/metrics_events.js
+++ b/ui/file_manager/file_manager/common/js/metrics_events.js
@@ -19,7 +19,8 @@ var metrics = metrics || metricsBase;
 /** @enum {string} */
 metrics.Categories = {
   ACQUISITION: 'Acquisition',
-  INTERNALS: 'Internals'
+  INTERNALS: 'Internals',
+  RAW_IMAGE: 'Raw Image'

[Ben Kwa, 2015/04/10 15:57:31]

This category sounds maybe a little too specific?  (Question mark because this
is really a judgement call and I don't have full context)

We're looking for a bucketing that corresponds to "I want to be able to see how
much time in my app was spent doing Foo", or "I want to see all the events that
occurred in my app that relate to Foo".  Examples of "Foo" might be:
- Importing media ("Acquisition")
- Browsing media (we don't have this yet, but we might in the future)
- Loading raw files (this case)

So if "Loading raw files" feels like it belongs on that list, then we're fine. 
If it feels too fine-grained, I might suggest something like IMAGE_LOAD for
bucketing all image-loading metrics.

[hirono, 2015/04/14 04:01:27]

Turned to use INTERNALS as @smckay suggested.

[Ben Kwa, 2015/04/14 14:47:28]

Is RAW_IMAGE still needed?  If not, let's remove it.

[hirono, 2015/04/15 01:57:10]

Done.

 };
 
 /**
@@ -144,5 +145,14 @@ metrics.timing = metrics.timing || {};
 metrics.timing.Variables = {
   COMPUTE_HASH: 'Compute Content Hash',
   SEARCH_BY_HASH: 'Search By Hash',
-  HISTORY_LOAD: 'History Load'
+  HISTORY_LOAD: 'History Load',
+  // Raw loading time.
+  RAW_LOAD_ARW: 'Row Load ARW',

[Ben Kwa, 2015/04/10 15:57:31]

"Raw"?  Ditto lines below.

[hirono, 2015/04/14 04:01:27]

Done.

+  RAW_LOAD_CR2: 'Row Load CR2',
+  RAW_LOAD_DNG: 'Row Load DNG',
+  RAW_LOAD_NEF: 'Row Load NEF',
+  RAW_LOAD_NRW: 'Row Load NRW',
+  RAW_LOAD_ORF: 'Row Load ORF',
+  RAW_LOAD_RAF: 'Row Load RAF',
+  RAW_LOAD_RW2: 'Row Load RW2'
 };