cc: Convert non-const reference arguments to pointers.

cc/trees/layer_tree_host_impl.cc

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/trees/layer_tree_host_impl.h"
 
 #include <algorithm>
 
 #include "base/basictypes.h"
 #include "base/debug/trace_event.h"
@@ skipping 979 matching lines @@
     TRACE_EVENT_INSTANT1("cc.debug", "Frame", TRACE_EVENT_SCOPE_THREAD,
                          "frame", ValueToString(FrameStateAsValue()));
   }
 
   // Because the contents of the HUD depend on everything else in the frame, the
   // contents of its texture are updated as the last thing before the frame is
   // drawn.
   if (active_tree_->hud_layer())
     active_tree_->hud_layer()->UpdateHudTexture(resource_provider_.get());
 
-  renderer_->DrawFrame(frame->render_passes);
+  renderer_->DrawFrame(&frame->render_passes);
   // The render passes should be consumed by the renderer.
   DCHECK(frame->render_passes.empty());
   frame->render_passes_by_id.clear();
 
   // The next frame should start by assuming nothing has changed, and changes
   // are noted as they occur.
   for (size_t i = 0; i < frame->render_surface_layer_list->size(); i++) {
     (*frame->render_surface_layer_list)[i]->render_surface()->damage_tracker()->
         DidDrawDamagedArea();
   }
@@ skipping 1017 matching lines @@
 }
 
 void LayerTreeHostImpl::SetDebugState(const LayerTreeDebugState& debug_state) {
   if (debug_state_.continuous_painting != debug_state.continuous_painting)
     paint_time_counter_->ClearHistory();
 
   debug_state_ = debug_state;
 }
 
 }  // namespace cc