Add bits to indicate which parts of GPUInfo are collected.

content/public/browser/gpu_data_manager.h

 // Copyright (c) 2012 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.
 
 #ifndef CONTENT_PUBLIC_BROWSER_GPU_DATA_MANAGER_H_
 #define CONTENT_PUBLIC_BROWSER_GPU_DATA_MANAGER_H_
 
 #include <list>
 #include <string>
 
@@ skipping 39 matching lines @@
   // This indicator might change because we could collect more GPU info or
   // because the GPU blacklist could be updated.
   // If this returns false, any further GPU access, including launching GPU
   // process, establish GPU channel, and GPU info collection, should be
   // blocked.
   // Can be called on any thread.
   // If |reason| is not NULL and GPU access is blocked, upon return, |reason|
   // contains a description of the reason why GPU access is blocked.
   virtual bool GpuAccessAllowed(std::string* reason) const = 0;
 
-  // Requests complete GPUinfo if it has not already been requested
+  // Requests complete GPU info if it has not already been requested
   virtual void RequestCompleteGpuInfoIfNeeded() = 0;
 
+  // Check if basic and context GPU info have been collected.
+  virtual bool IsEssentialGpuInfoAvailable() const = 0;
+
+  // On Windows, besides basic and context GPU info, it also checks if
+  // DxDiagnostics have been collected.
+  // On other platforms, it's the same as IsEsentialGpuInfoAvailable().
   virtual bool IsCompleteGpuInfoAvailable() const = 0;
 
   // Requests that the GPU process report its current video memory usage stats,
   // which can be retrieved via the GPU data manager's on-update function.
   virtual void RequestVideoMemoryUsageStatsUpdate() const = 0;
 
   // Returns true if SwiftShader should be used.
   virtual bool ShouldUseSwiftShader() const = 0;
 
   // Register a path to SwiftShader.
@@ skipping 27 matching lines @@
   // Whether the browser compositor can be used.
   virtual bool CanUseGpuBrowserCompositor() const = 0;
 
  protected:
   virtual ~GpuDataManager() {}
 };
 
 };  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_GPU_DATA_MANAGER_H_