gpu: Replace GpuMsg_CollectGraphicsInfo with mojom API.

services/ui/gpu/gpu_service.h

Index: services/ui/gpu/gpu_service.h
diff --git a/services/ui/gpu/gpu_service.h b/services/ui/gpu/gpu_service.h
index 2742e4fa718262f9650318efe6910b3d41c21aeb..6834b9c5ce098826c22f6d49565c4e76a60ea771 100644
--- a/services/ui/gpu/gpu_service.h
+++ b/services/ui/gpu/gpu_service.h
@@ -84,7 +84,6 @@ class GpuService : public gpu::GpuChannelManagerDelegate,
   void set_start_time(base::Time start_time) { start_time_ = start_time; }
 
   const gpu::GPUInfo& gpu_info() const { return gpu_info_; }
-  void set_gpu_info(const gpu::GPUInfo& gpu_info) { gpu_info_ = gpu_info; }
 
  private:
   friend class GpuMain;
@@ -103,6 +102,8 @@ class GpuService : public gpu::GpuChannelManagerDelegate,
     return gpu_channel_manager_->share_group();
   }
 
+  void UpdateGpuInfoPlatform();
+
   // gpu::GpuChannelManagerDelegate:
   void DidCreateOffscreenContext(const GURL& active_url) override;
   void DidDestroyChannel(int client_id) override;
@@ -140,6 +141,8 @@ class GpuService : public gpu::GpuChannelManagerDelegate,
                               const gpu::SyncToken& sync_token) override;
   void GetVideoMemoryUsageStats(
       const GetVideoMemoryUsageStatsCallback& callback) override;
+  void RequestCompleteGpuInfo(
+      const RequestCompleteGpuInfoCallback& callback) override;
   void LoadedShader(const std::string& data) override;
   void DestroyingVideoSurface(
       int32_t surface_id,