Figure out whether we have enough information to make the final GPU blacklisting decision.

content/browser/gpu/gpu_blacklist.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_BROWSER_GPU_GPU_BLACKLIST_H_
 #define CONTENT_BROWSER_GPU_GPU_BLACKLIST_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 74 matching lines @@
   //    "webkitBugs": []
   // }
   void GetBlacklistReasons(ListValue* problem_list) const;
 
   // Return the largest entry id.  This is used for histogramming.
   uint32 max_entry_id() const;
 
   // Returns the version of the current blacklist.
   std::string GetVersion() const;
 
+  // Check if we needs more gpu info to make the blacklisting decisions.
+  // This is computed from the last MakeBlacklistDecision() call.
+  // If yes, we should create a gl context and do a full gpu info collection.
+  bool needs_more_info() const { return needs_more_info_; }
+
  private:
   friend class GpuBlacklistTest;
   FRIEND_TEST_ALL_PREFIXES(GpuBlacklistTest, ChromeVersionEntry);
   FRIEND_TEST_ALL_PREFIXES(GpuBlacklistTest, CurrentBlacklistValidation);
   FRIEND_TEST_ALL_PREFIXES(GpuBlacklistTest, UnknownField);
   FRIEND_TEST_ALL_PREFIXES(GpuBlacklistTest, UnknownExceptionField);
   FRIEND_TEST_ALL_PREFIXES(GpuBlacklistTest, UnknownFeature);
   FRIEND_TEST_ALL_PREFIXES(GpuBlacklistTest, DualGpuModel);
 
   enum BrowserVersionSupport {
@@ skipping 163 matching lines @@
         const base::DictionaryValue* value, bool top_level);
 
     // Determines if a given os/gc/machine_model/driver is included in the
     // Entry set.
     bool Contains(OsType os_type,
                   const Version& os_version,
                   const std::string& machine_model_name,
                   const Version& machine_model_version,
                   const content::GPUInfo& gpu_info) const;
 
+    // Determines whether we needs more gpu info to make the blacklisting
+    // decision.  It should only be checked if Contains() returns true.
+    bool NeedsMoreInfo(const content::GPUInfo& gpu_info) const;
+
     // Returns the OsType.
     OsType GetOsType() const;
 
     // Returns the entry's unique id.  0 is reserved.
     uint32 id() const;
 
     // Returns whether the entry is disabled.
     bool disabled() const;
 
     // Returns the description of the entry
@@ skipping 171 matching lines @@
 
   // This records all the blacklist entries that are appliable to the current
   // user machine.  It is updated everytime MakeBlacklistDecision() is
   // called and is used later by GetDecisionEntries().
   std::vector<ScopedGpuBlacklistEntry> active_entries_;
 
   uint32 max_entry_id_;
 
   bool contains_unknown_fields_;
 
+  bool needs_more_info_;
+
   std::string current_machine_model_name_;
   scoped_ptr<Version> current_machine_model_version_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuBlacklist);
 };
 
 #endif  // CONTENT_BROWSER_GPU_GPU_BLACKLIST_H_