Move gpu blacklist data file to content side.

content/public/browser/gpu_data_manager.h

Index: content/public/browser/gpu_data_manager.h
===================================================================
--- content/public/browser/gpu_data_manager.h	(revision 156701)
+++ content/public/browser/gpu_data_manager.h	(working copy)
@@ -30,12 +30,10 @@
   // This collects preliminary GPU info, load GpuBlacklist, and compute the
   // preliminary blacklisted features; it should only be called at browser
   // startup time in UI thread before the IO restriction is turned on.
-  virtual void Initialize(const std::string& browser_version_string,
-                          const std::string& gpu_blacklist_json) = 0;
+  virtual void Initialize(const std::string& browser_version_string) = 0;
   // The same as above, except that the GPUInfo is provided.
   // For testing only.
-  virtual void Initialize(const std::string& browser_version_string,
-                          const std::string& gpu_blacklist_json,
+  virtual void Initialize(const std::string& gpu_blacklist_json,
                           const content::GPUInfo& gpu_info) = 0;
 
   virtual std::string GetBlacklistVersion() const = 0;