Call glReleaseShaderCompiler when GLRenderer loses visibility.

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 421 matching lines @@
   return resource_provider_->best_texture_format();
 }
 
 void GLRenderer::DidChangeVisibility() {
   if (visible_) {
     output_surface_->EnsureBackbuffer();
   } else {
     TRACE_EVENT0("cc", "GLRenderer::DidChangeVisibility dropping resources");
     ReleaseRenderPassTextures();
     output_surface_->DiscardBackbuffer();
+    gl_->ReleaseShaderCompiler();
   }
 
   PrepareGeometry(NO_BINDING);
 
   auto* context_provider = output_surface_->context_provider();
   auto* cache_controller = context_provider->CacheController();
   if (visible_) {
     DCHECK(!context_visibility_);
     context_visibility_ = cache_controller->ClientBecameVisible();
   } else {
@@ skipping 2637 matching lines @@
   if (!transform) {
     transform = gfx::ColorTransform::NewColorTransform(
         src, dst, gfx::ColorTransform::Intent::INTENT_PERCEPTUAL);
   }
   return transform.get();
 }
 
 void GLRenderer::CleanupSharedObjects() {
   shared_geometry_ = nullptr;
 
+  gl_->ReleaseShaderCompiler();
   for (auto& iter : program_cache_)
     iter.second->Cleanup(gl_);
   program_cache_.clear();
   color_transform_cache_.clear();
 
   if (offscreen_framebuffer_id_)
     gl_->DeleteFramebuffers(1, &offscreen_framebuffer_id_);
 
   if (offscreen_stencil_renderbuffer_id_)
     gl_->DeleteRenderbuffers(1, &offscreen_stencil_renderbuffer_id_);
@@ skipping 500 matching lines @@
     return;
 
   // Report GPU overdraw as a percentage of |max_result|.
   TRACE_COUNTER1(
       TRACE_DISABLED_BY_DEFAULT("cc.debug.overdraw"), "GPU Overdraw",
       (std::accumulate(overdraw->begin(), overdraw->end(), 0) * 100) /
           max_result);
 }
 
 }  // namespace cc