Add hints for potential overlay promotion on android.

cc/output/gl_renderer.cc

 // Copyright 2010 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/output/gl_renderer.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 2454 matching lines @@
              .egl_image_external);
 
   TexCoordPrecision tex_coord_precision = TexCoordPrecisionRequired(
       gl_, &highp_threshold_cache_, highp_threshold_min_,
       quad->shared_quad_state->visible_quad_layer_rect.bottom_right());
 
   const VideoStreamTextureProgram* program =
       GetVideoStreamTextureProgram(tex_coord_precision);
   SetUseProgram(program->program());
 
+  bool is_promotable = IsResourcePromotable(quad->resource_id());
+  LOG(ERROR) << "AVDA: " << __FUNCTION__ << ": promotable: " << is_promotable;
+
   ToGLMatrix(&gl_matrix[0], quad->matrix);
 
   ResourceProvider::ScopedReadLockGL lock(resource_provider_,
                                           quad->resource_id());
 
   DCHECK_EQ(GL_TEXTURE0, GetActiveTextureUnit(gl_));
   gl_->BindTexture(GL_TEXTURE_EXTERNAL_OES, lock.texture_id());
 
   gl_->UniformMatrix4fvStreamTextureMatrixCHROMIUM(
       program->vertex_shader().tex_matrix_location(), false, gl_matrix);
@@ skipping 1560 matching lines @@
   // The alpha has already been applied when copying the RPDQ to an IOSurface.
   GLfloat alpha = 1;
   gl_->ScheduleCALayerSharedStateCHROMIUM(alpha, is_clipped, clip_rect,
                                           sorting_context_id, gl_transform);
   gl_->ScheduleCALayerCHROMIUM(
       texture_id, contents_rect, ca_layer_overlay->background_color,
       ca_layer_overlay->edge_aa_mask, bounds_rect, filter);
 }
 
 }  // namespace cc