Remove usage of using namespace, and cleanup trace_analyzer namespace

chrome/test/perf/frame_rate/frame_rate_tests.cc

Index: chrome/test/perf/frame_rate/frame_rate_tests.cc
diff --git a/chrome/test/perf/frame_rate/frame_rate_tests.cc b/chrome/test/perf/frame_rate/frame_rate_tests.cc
index d43efcfa6b33be777943b9937603cb74a1c303e2..d207f43ec42a2c773e731669fcfb78c17335cb5b 100644
--- a/chrome/test/perf/frame_rate/frame_rate_tests.cc
+++ b/chrome/test/perf/frame_rate/frame_rate_tests.cc
@@ -121,15 +121,16 @@ class FrameRateTest
   }
 
   bool DidRunOnGpu(const std::string& json_events) {
-    using namespace trace_analyzer;
+    using trace_analyzer::Query;
+    using trace_analyzer::TraceAnalyzer;
 
     // Check trace for GPU accleration.
     scoped_ptr<TraceAnalyzer> analyzer(TraceAnalyzer::Create(json_events));
 
     gfx::GLImplementation gl_impl = gfx::kGLImplementationNone;
-    const TraceEvent* gpu_event = analyzer->FindOneEvent(
-        Query(EVENT_NAME) == Query::String("SwapBuffers") &&
-        Query(EVENT_HAS_NUMBER_ARG, "GLImpl"));
+    const trace_analyzer::TraceEvent* gpu_event = analyzer->FindOneEvent(
+        Query::EventName() == Query::String("SwapBuffers") &&
+        Query::EventHasNumberArg("glimpl"));
     if (gpu_event)
       gl_impl = static_cast<gfx::GLImplementation>(
           gpu_event->GetKnownArgAsInt("GLImpl"));