CC: Plumb LayerSettings parameter for cc::Layer construction.

android_webview/browser/hardware_renderer.cc

Index: android_webview/browser/hardware_renderer.cc
diff --git a/android_webview/browser/hardware_renderer.cc b/android_webview/browser/hardware_renderer.cc
index 8ee14f50318c09abe333db5e58ea8354aa6beb6c..8e75e59d597a077ddf18046b21aa8db309876298 100644
--- a/android_webview/browser/hardware_renderer.cc
+++ b/android_webview/browser/hardware_renderer.cc
@@ -23,6 +23,7 @@
 #include "cc/scheduler/begin_frame_source.h"
 #include "cc/trees/layer_tree_host.h"
 #include "cc/trees/layer_tree_settings.h"
+#include "content/public/browser/android/compositor.h"
 #include "gpu/command_buffer/client/gl_in_process_context.h"
 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
 #include "ui/gfx/frame_time.h"
@@ -39,7 +40,7 @@ HardwareRenderer::HardwareRenderer(SharedRendererState* state)
       stencil_enabled_(false),
       viewport_clip_valid_for_dcheck_(false),
       gl_surface_(new AwGLSurface),
-      root_layer_(cc::Layer::Create()),
+      root_layer_(cc::Layer::Create(content::Compositor::LayerSettings())),

[loyso (OOO), 2015/05/18 07:13:34]

I'm not sure about this. Do we need a special case/command line parameter?

[boliu, 2015/05/18 15:39:31]

This is a different cc instance, so should not re-use settings from
content::Compositor. Just create a LayerSettings here.

[loyso (OOO), 2015/05/20 02:48:53]

I decided to go with HardwareRenderer-local g_layer_settings. PTAL!

       resource_collection_(new cc::DelegatedFrameResourceCollection),
       output_surface_(NULL) {
   DCHECK(last_egl_context_);
@@ -134,7 +135,8 @@ void HardwareRenderer::CommitFrame() {
     frame_provider_ = new cc::DelegatedFrameProvider(
         resource_collection_.get(), frame->delegated_frame_data.Pass());
 
-    delegated_layer_ = cc::DelegatedRendererLayer::Create(frame_provider_);
+    delegated_layer_ = cc::DelegatedRendererLayer::Create(
+        content::Compositor::LayerSettings(), frame_provider_);
     delegated_layer_->SetBounds(frame_size_);
     delegated_layer_->SetIsDrawable(true);