gpu:: Remove GpuDataManagerObserver::OnVideoMemoryUsageStatsUpdate().

content/browser/gpu/gpu_data_manager_impl.cc

Index: content/browser/gpu/gpu_data_manager_impl.cc
diff --git a/content/browser/gpu/gpu_data_manager_impl.cc b/content/browser/gpu/gpu_data_manager_impl.cc
index 9eb218b81084c9090b2540a010ac3a92d1d13c09..0c9940beb4bd6a895723a0bb6fc19abcdf9b7c26 100644
--- a/content/browser/gpu/gpu_data_manager_impl.cc
+++ b/content/browser/gpu/gpu_data_manager_impl.cc
@@ -111,9 +111,11 @@ bool GpuDataManagerImpl::IsCompleteGpuInfoAvailable() const {
   return private_->IsCompleteGpuInfoAvailable();
 }
 
-void GpuDataManagerImpl::RequestVideoMemoryUsageStatsUpdate() const {
+void GpuDataManagerImpl::RequestVideoMemoryUsageStatsUpdate(
+    const base::Callback<void(const gpu::VideoMemoryUsageStats& stats)>&
+        callback) const {
   base::AutoLock auto_lock(lock_);
-  private_->RequestVideoMemoryUsageStatsUpdate();
+  private_->RequestVideoMemoryUsageStatsUpdate(callback);
 }
 
 bool GpuDataManagerImpl::ShouldUseSwiftShader() const {
@@ -195,12 +197,6 @@ void GpuDataManagerImpl::UpdateGpuFeatureInfo(
   private_->UpdateGpuFeatureInfo(gpu_feature_info);
 }
 
-void GpuDataManagerImpl::UpdateVideoMemoryUsageStats(
-    const gpu::VideoMemoryUsageStats& video_memory_usage_stats) {
-  base::AutoLock auto_lock(lock_);
-  private_->UpdateVideoMemoryUsageStats(video_memory_usage_stats);
-}
-
 void GpuDataManagerImpl::AppendRendererCommandLine(
     base::CommandLine* command_line) const {
   base::AutoLock auto_lock(lock_);