In about:gpu page, make sure feature status and problem description match

gpu/config/gpu_control_list_unittest.cc

Index: gpu/config/gpu_control_list_unittest.cc
diff --git a/gpu/config/gpu_control_list_unittest.cc b/gpu/config/gpu_control_list_unittest.cc
index 9ba06b897aa472cd3cf84ef1748faf36fbb9770a..d67d67751e74c02cff8a0f6d959508103c76079b 100644
--- a/gpu/config/gpu_control_list_unittest.cc
+++ b/gpu/config/gpu_control_list_unittest.cc
@@ -289,6 +289,44 @@ TEST_F(GpuControlListTest, DisabledEntry) {
   EXPECT_EQ(1u, flag_entries.size());
 }
 
+TEST_F(GpuControlListTest, NeedsMoreInfo) {
+  const std::string json = LONG_STRING_CONST(
+      {
+        "name": "gpu control list",
+        "version": "0.1",
+        "entries": [
+          {
+            "id": 1,
+            "os": {
+              "type": "win"
+            },
+            "vendor_id": "0x10de",
+            "driver_version": {
+              "op": "<",
+              "value": "12"
+            },
+            "features": [
+              "test_feature_0"
+            ]
+          }
+        ]
+      }
+  );
+  GPUInfo gpu_info;
+  gpu_info.gpu.vendor_id = kNvidiaVendorId;
+
+  scoped_ptr<GpuControlList> control_list(Create());
+  EXPECT_TRUE(control_list->LoadList(json, GpuControlList::kAllOs));
+
+  std::set<int> features = control_list->MakeDecision(
+      GpuControlList::kOsWin, kOsVersion, gpu_info);
+  EXPECT_EMPTY_SET(features);
+  EXPECT_TRUE(control_list->needs_more_info());
+  std::vector<uint32> decision_entries;
+  control_list->GetDecisionEntries(&decision_entries, false);
+  EXPECT_EQ(0u, decision_entries.size());

[Zhenyao Mo, 2014/08/26 02:45:15]

Before the change, this test fails (returns 1 instead of 0);
After the change, this test passes.

[Ken Russell (switch to Gerrit), 2014/08/26 20:49:21]

OK, sounds good. But should the test also verify the transition from
needs_more_info() returning true to it returning false?

[Zhenyao Mo, 2014/08/27 03:44:05]

Done.

+}
+
 TEST_F(GpuControlListTest, NeedsMoreInfoForExceptions) {
   const std::string json = LONG_STRING_CONST(
       {