Free the resources used by a context group.

gpu/command_buffer/service/shader_manager.cc

 // Copyright (c) 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 "gpu/command_buffer/service/shader_manager.h"
 #include "base/logging.h"
 
 namespace gpu {
 namespace gles2 {
 
+ShaderManager::~ShaderManager() {
+  DCHECK(shader_infos_.empty());
+}
+
+void ShaderManager::Destroy(bool have_context) {
+  while (!shader_infos_.empty()) {
+    if (have_context) {
+      ShaderInfo* info = shader_infos_.begin()->second;
+      if (!info->IsDeleted()) {
+        glDeleteShader(info->service_id());
+        info->MarkAsDeleted();
+      }
+    }
+    shader_infos_.erase(shader_infos_.begin());
+  }
+}
+
 void ShaderManager::CreateShaderInfo(GLuint client_id,
                                      GLuint service_id,
                                      GLenum shader_type) {
   std::pair<ShaderInfoMap::iterator, bool> result =
       shader_infos_.insert(std::make_pair(
           client_id, ShaderInfo::Ref(new ShaderInfo(service_id, shader_type))));
   DCHECK(result.second);
 }
 
 ShaderManager::ShaderInfo* ShaderManager::GetShaderInfo(GLuint client_id) {
@@ skipping 18 matching lines @@
       return true;
     }
   }
   return false;
 }
 
 }  // namespace gles2
 }  // namespace gpu