[SystemInfo API] Finish TODOs in SystemInfoProvider

chrome/browser/extensions/api/system_info_memory/memory_info_provider_unittest.cc

Index: chrome/browser/extensions/api/system_info_memory/memory_info_provider_unittest.cc
diff --git a/chrome/browser/extensions/api/system_info_memory/memory_info_provider_unittest.cc b/chrome/browser/extensions/api/system_info_memory/memory_info_provider_unittest.cc
index 9e008b37be4e99d02276a540e5a25fed72535e7a..85f98dac7961e277e055df0124ce793a44842026 100644
--- a/chrome/browser/extensions/api/system_info_memory/memory_info_provider_unittest.cc
+++ b/chrome/browser/extensions/api/system_info_memory/memory_info_provider_unittest.cc
@@ -20,16 +20,16 @@ const struct TestMemoryInfo kTestingMemoryInfoData = { 4096.0, 1024.0 };
 
 class TestMemoryInfoProvider : public MemoryInfoProvider {
  public:
-  virtual bool QueryInfo(MemoryInfo* info) OVERRIDE;
+  virtual bool QueryInfo() OVERRIDE;
+
  private:
   virtual ~TestMemoryInfoProvider();
 };
 
 TestMemoryInfoProvider::~TestMemoryInfoProvider() {}
 
-bool TestMemoryInfoProvider::QueryInfo(MemoryInfo* info) {
-  if (info == NULL)
-    return false;
+bool TestMemoryInfoProvider::QueryInfo() {
+  MemoryInfo* info = &info_;
   info->capacity = kTestingMemoryInfoData.capacity;
   info->available_capacity = kTestingMemoryInfoData.available_capacity;
   return true;
@@ -48,11 +48,11 @@ MemoryInfoProviderTest::MemoryInfoProviderTest()
 }
 
 TEST_F(MemoryInfoProviderTest, QueryMemoryInfo) {
-  scoped_ptr<MemoryInfo> memory_info(new MemoryInfo());
-  EXPECT_TRUE(memory_info_provider_->QueryInfo(memory_info.get()));
-  EXPECT_DOUBLE_EQ(kTestingMemoryInfoData.capacity, memory_info->capacity);
+  EXPECT_TRUE(memory_info_provider_->QueryInfo());
+  EXPECT_DOUBLE_EQ(kTestingMemoryInfoData.capacity,
+                   memory_info_provider_->memory_info().capacity);
   EXPECT_DOUBLE_EQ(kTestingMemoryInfoData.available_capacity,
-                   memory_info->available_capacity);
+                   memory_info_provider_->memory_info().available_capacity);
 }
 
 }  // namespace extensions