Bug 1144900: Fix windows gfx out of memory assertion. r=Bas

--HG--
extra : rebase_source : 1158df9324b3a1f30f7a446d7713ca17ad26a5fb

gfx/thebes/gfxPlatform.h

@@ -166,7 +166,8 @@ enum class DeviceResetReason
   REMOVED,
   RESET,
   DRIVER_ERROR,
-  INVALID_CALL
+  INVALID_CALL,
+  OUT_OF_MEMORY
 };
 
 class gfxPlatform {

gfx/thebes/gfxWindowsPlatform.cpp

@@ -1168,6 +1168,10 @@ gfxWindowsPlatform::DidRenderingDeviceReset(DeviceResetReason* aResetReason)
           break;
         case DXGI_ERROR_INVALID_CALL:
           *aResetReason = DeviceResetReason::INVALID_CALL;
+          break;
+        case E_OUTOFMEMORY:
+          *aResetReason = DeviceResetReason::OUT_OF_MEMORY;
+          break;
         default:
           MOZ_ASSERT(false);
         }

toolkit/components/telemetry/Histograms.json

@@ -214,7 +214,7 @@
     "expires_in_version": "never",
     "kind": "enumerated",
     "n_values": 10,
-    "description": "GPU Device Reset Reason (ok, hung, removed, reset, internal error, invalid call)"
+    "description": "GPU Device Reset Reason (ok, hung, removed, reset, internal error, invalid call, out of memory)"
   },
   "FORGET_SKIPPABLE_MAX": {
     "expires_in_version": "never",