Fix "unreachable code" warnings (MSVC warning 4702) in base/.

base/win/event_trace_consumer_unittest.cc

Index: base/win/event_trace_consumer_unittest.cc
===================================================================
--- base/win/event_trace_consumer_unittest.cc	(revision 258102)
+++ base/win/event_trace_consumer_unittest.cc	(working copy)
@@ -155,7 +155,6 @@
     if (consumer_thread_.Get() == NULL)
       return HRESULT_FROM_WIN32(::GetLastError());
 
-    HRESULT hr = S_OK;
     HANDLE events[] = { consumer_ready_, consumer_thread_ };
     DWORD result = ::WaitForMultipleObjects(arraysize(events), events,
                                             FALSE, INFINITE);
@@ -172,14 +171,10 @@
           if (::GetExitCodeThread(consumer_thread_, &exit_code))
             return exit_code;
           return HRESULT_FROM_WIN32(::GetLastError());
-          break;
         }
       default:
         return E_UNEXPECTED;
-        break;
     }
-
-    return hr;
   }
 
   // Waits for consumer_ thread to exit, and returns its exit code.
@@ -237,8 +232,8 @@
     return;
   }
 
-  ASSERT_HRESULT_SUCCEEDED(controller.EnableProvider(test_provider_,
-      TRACE_LEVEL_VERBOSE, 0xFFFFFFFF));
+  ASSERT_HRESULT_SUCCEEDED(controller.EnableProvider(
+      test_provider_, TRACE_LEVEL_VERBOSE, 0xFFFFFFFF));
 
   EtwTraceProvider provider(test_provider_);
   ASSERT_EQ(ERROR_SUCCESS, provider.Register());