cc: Delete ContextProvider::MakeGrContextCurrent.

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 <algorithm>
 #include <limits>
 #include <set>
 #include <string>
@@ skipping 441 matching lines @@
     return SkBitmap();
 
   ResourceProvider::ScopedWriteLockGL lock(renderer->resource_provider(),
                                            source_texture_resource->id());
 
   // Flush the compositor context to ensure that textures there are available
   // in the shared context.  Do this after locking/creating the compositor
   // texture.
   renderer->resource_provider()->Flush();
 
-  // Make sure skia uses the correct GL context.
-  offscreen_contexts->MakeGrContextCurrent();
-
   // Wrap the source texture in a Ganesh platform texture.
   GrBackendTextureDesc backend_texture_description;
   backend_texture_description.fWidth = source_texture_resource->size().width();
   backend_texture_description.fHeight =
       source_texture_resource->size().height();
   backend_texture_description.fConfig = kSkia8888_GrPixelConfig;
   backend_texture_description.fTextureHandle = lock.texture_id();
   backend_texture_description.fOrigin = kBottomLeft_GrSurfaceOrigin;
   skia::RefPtr<GrTexture> texture =
       skia::AdoptRef(offscreen_contexts->GrContext()->wrapBackendTexture(
@@ skipping 85 matching lines @@
   }
 
   ResourceProvider::ScopedReadLockGL lock_background(
       renderer->resource_provider(), background_texture_resource->id());
 
   // Flush the compositor context to ensure that textures there are available
   // in the shared context.  Do this after locking/creating the compositor
   // texture.
   renderer->resource_provider()->Flush();
 
-  // Make sure skia uses the correct GL context.
-  offscreen_contexts->MakeGrContextCurrent();
-
   // Wrap the source texture in a Ganesh platform texture.
   GrBackendTextureDesc backend_texture_description;
   backend_texture_description.fConfig = kSkia8888_GrPixelConfig;
   backend_texture_description.fOrigin = kBottomLeft_GrSurfaceOrigin;
 
   backend_texture_description.fWidth = source_size.width();
   backend_texture_description.fHeight = source_size.height();
   backend_texture_description.fTextureHandle = source_texture_with_filters_id;
   skia::RefPtr<GrTexture> source_texture =
       skia::AdoptRef(offscreen_contexts->GrContext()->wrapBackendTexture(
@@ skipping 2421 matching lines @@
   is_scissor_enabled_ = false;
   GLC(gl_, gl_->Disable(GL_SCISSOR_TEST));
   scissor_rect_needs_reset_ = true;
 }
 
 bool GLRenderer::IsContextLost() {
   return output_surface_->context_provider()->IsContextLost();
 }
 
 }  // namespace cc