Add the DelegatingRenderer class with its initialize path.

cc/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/gl_renderer.h"
 
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/string_split.h"
 #include "base/string_util.h"
 #include "build/build_config.h"
 #include "cc/damage_tracker.h"
 #include "cc/geometry_binding.h"
 #include "cc/layer_quad.h"
 #include "cc/math_util.h"
-#include "cc/platform_color.h"
 #include "cc/priority_calculator.h"
 #include "cc/proxy.h"
 #include "cc/render_pass.h"
 #include "cc/render_surface_filters.h"
 #include "cc/scoped_resource.h"
 #include "cc/single_thread_proxy.h"
 #include "cc/stream_video_draw_quad.h"
 #include "cc/texture_draw_quad.h"
 #include "cc/video_layer_impl.h"
 #include "third_party/khronos/GLES2/gl2.h"
@@ skipping 89 matching lines @@
         DCHECK(extensions.count("GL_ARB_texture_rectangle"));
 
     m_capabilities.usingGpuMemoryManager = extensions.count("GL_CHROMIUM_gpu_memory_manager");
     if (m_capabilities.usingGpuMemoryManager)
         m_context->setMemoryAllocationChangedCallbackCHROMIUM(this);
 
     m_capabilities.usingDiscardFramebuffer = extensions.count("GL_CHROMIUM_discard_framebuffer");
 
     m_capabilities.usingEglImage = extensions.count("GL_OES_EGL_image_external");
 
-    GLC(m_context, m_context->getIntegerv(GL_MAX_TEXTURE_SIZE, &m_capabilities.maxTextureSize));
-    m_capabilities.bestTextureFormat = PlatformColor::bestTextureFormat(m_context, extensions.count("GL_EXT_texture_format_BGRA8888"));
+    m_capabilities.maxTextureSize = m_resourceProvider->maxTextureSize();
+    m_capabilities.bestTextureFormat = m_resourceProvider->bestTextureFormat();
 
     // The updater can access textures while the GLRenderer is using them.
     m_capabilities.allowPartialTextureUpdates = true;
 
     m_isUsingBindUniform = extensions.count("GL_CHROMIUM_bind_uniform_location");
 
     // Make sure scissoring starts as disabled.
     GLC(m_context, m_context->disable(GL_SCISSOR_TEST));
     DCHECK(!m_isScissorEnabled);
 
@@ skipping 1610 matching lines @@
 
     releaseRenderPassTextures();
 }
 
 bool GLRenderer::isContextLost()
 {
     return (m_context->getGraphicsResetStatusARB() != GL_NO_ERROR);
 }
 
 }  // namespace cc