Migrate WTF::HashMap::get() to ::at()

third_party/WebKit/Source/platform/graphics/OffscreenCanvasFrameDispatcherImpl.cpp

 // Copyright 2016 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 "platform/graphics/OffscreenCanvasFrameDispatcherImpl.h"
 
 #include "cc/output/compositor_frame.h"
 #include "cc/quads/texture_draw_quad.h"
 #include "gpu/command_buffer/client/gles2_interface.h"
 #include "platform/CrossThreadFunctional.h"
@@ skipping 385 matching lines @@
 
 void OffscreenCanvasFrameDispatcherImpl::OnBeginFrame(
     const cc::BeginFrameArgs& beginFrameArgs) {
   DCHECK(client());
   client()->beginFrame();
 }
 
 void OffscreenCanvasFrameDispatcherImpl::ReclaimResources(
     const cc::ReturnedResourceArray& resources) {
   for (const auto& resource : resources) {
-    RefPtr<StaticBitmapImage> image = m_cachedImages.get(resource.id);
+    RefPtr<StaticBitmapImage> image = m_cachedImages.at(resource.id);
     if (image)
       image->updateSyncToken(resource.sync_token);
     reclaimResource(resource.id);
   }
 }
 
 void OffscreenCanvasFrameDispatcherImpl::WillDrawSurface(
     const cc::LocalSurfaceId& localSurfaceId,
     ::gfx::mojom::blink::RectPtr damageRect) {
   // TODO(fsamuel, staraz): Implement this.
@@ skipping 24 matching lines @@
 
 void OffscreenCanvasFrameDispatcherImpl::reshape(int width, int height) {
   if (m_width != width || m_height != height) {
     m_width = width;
     m_height = height;
     m_changeSizeForNextCommit = true;
   }
 }
 
 }  // namespace blink