Fix style checker errors after https://codereview.chromium.org/1263403002/

base/profiler/win32_stack_frame_unwinder.h

Index: base/profiler/win32_stack_frame_unwinder.h
diff --git a/base/profiler/win32_stack_frame_unwinder.h b/base/profiler/win32_stack_frame_unwinder.h
index 887e824658492b78a29f437e35d139506b80f6d2..a45d5778097755a22100f4717c63148a2499ceb0 100644
--- a/base/profiler/win32_stack_frame_unwinder.h
+++ b/base/profiler/win32_stack_frame_unwinder.h
@@ -45,12 +45,13 @@ class BASE_EXPORT Win32StackFrameUnwinder {
    public:
     Win32UnwindFunctions();
 
-    virtual PRUNTIME_FUNCTION LookupFunctionEntry(DWORD64 program_counter,
-                                                  PDWORD64 image_base) override;
+    PRUNTIME_FUNCTION LookupFunctionEntry(DWORD64 program_counter,
+                                          PDWORD64 image_base) override;
 
-    virtual void VirtualUnwind(DWORD64 image_base, DWORD64 program_counter,
-                               PRUNTIME_FUNCTION runtime_function,
-                               CONTEXT* context) override;
+    void VirtualUnwind(DWORD64 image_base,
+                       DWORD64 program_counter,
+                       PRUNTIME_FUNCTION runtime_function,
+                       CONTEXT* context) override;
 
    private:
     DISALLOW_COPY_AND_ASSIGN(Win32UnwindFunctions);