Rename all methods accessing Singleton<T> as GetInstance().

chrome/test/gpu/gpu_pixel_browsertest.cc

Index: chrome/test/gpu/gpu_pixel_browsertest.cc
diff --git a/chrome/test/gpu/gpu_pixel_browsertest.cc b/chrome/test/gpu/gpu_pixel_browsertest.cc
index decf0c4100052bf0fa5239dfe64548da36c0516a..e5c22384919d5c34752ba0f973c8f74219fa0f80 100644
--- a/chrome/test/gpu/gpu_pixel_browsertest.cc
+++ b/chrome/test/gpu/gpu_pixel_browsertest.cc
@@ -156,7 +156,7 @@ class GpuPixelBrowserTest : public InProcessBrowserTest {
 #error "Not implemented for this platform"
 #endif
     if (using_gpu_) {
-      const GPUInfo& info = GpuProcessHostUIShim::Get()->gpu_info();
+      const GPUInfo& info = GpuProcessHostUIShim::GetInstance()->gpu_info();
       if (info.progress() != GPUInfo::kComplete) {
         LOG(ERROR) << "Could not get gpu info";
         return false;