cc: Add flag to specify to ResourceProvider to always use GMBs

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index e4b11092926cc71dcf3e1a6ff86272f3a943af9d..d1b98bbb4da792d3732e40c2cb3312f95690e39b 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -1196,6 +1196,11 @@ static void AppendCompositorCommandLineFlags(base::CommandLine* command_line) {
   if (IsForceGpuRasterizationEnabled())
     command_line->AppendSwitch(switches::kForceGpuRasterization);
 
+  if (IsGpuMemoryBufferCompositorResourcesEnabled()) {
+    command_line->AppendSwitch(
+        switches::kEnableGpuMemoryBufferCompositorResources);
+  }
+
   // Persistent buffers may come at a performance hit (not all platform specific
   // buffers support it), so only enable them if partial raster is enabled and
   // we are actually going to use them.