gpu: Use mojom API for getting video memory usage.

content/common/gpu_host_messages.h

 // 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.
 
 // Multiply-included message file, hence no include guard here, but see below
 // for a much smaller-than-usual include guard section.
 
 #include "build/build_config.h"
 #include "content/common/content_export.h"
 #include "content/common/establish_channel_params.h"
@@ skipping 18 matching lines @@
 
 #undef IPC_MESSAGE_EXPORT
 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
 
 #define IPC_MESSAGE_START GpuMsgStart
 
 IPC_ENUM_TRAITS_VALIDATE(gpu::GpuPreferences::VpxDecodeVendors,
                          ((value >= gpu::GpuPreferences::VPX_VENDOR_NONE) &&
                           (value <= gpu::GpuPreferences::VPX_VENDOR_ALL)))
 
-IPC_STRUCT_TRAITS_BEGIN(gpu::VideoMemoryUsageStats)
-  IPC_STRUCT_TRAITS_MEMBER(process_map)
-  IPC_STRUCT_TRAITS_MEMBER(bytes_allocated)
-IPC_STRUCT_TRAITS_END()
-
-IPC_STRUCT_TRAITS_BEGIN(gpu::VideoMemoryUsageStats::ProcessStats)
-  IPC_STRUCT_TRAITS_MEMBER(video_memory)
-  IPC_STRUCT_TRAITS_MEMBER(has_duplicates)
-IPC_STRUCT_TRAITS_END()
-
 IPC_STRUCT_BEGIN(GpuMsg_CreateGpuMemoryBuffer_Params)
   IPC_STRUCT_MEMBER(gfx::GpuMemoryBufferId, id)
   IPC_STRUCT_MEMBER(gfx::Size, size)
   IPC_STRUCT_MEMBER(gfx::BufferFormat, format)
   IPC_STRUCT_MEMBER(gfx::BufferUsage, usage)
   IPC_STRUCT_MEMBER(int32_t, client_id)
   IPC_STRUCT_MEMBER(gpu::SurfaceHandle, surface_handle)
 IPC_STRUCT_END()
 
 IPC_STRUCT_TRAITS_BEGIN(gpu::GpuPreferences)
@@ skipping 54 matching lines @@
 // Tells the GPU process to destroy buffer.
 IPC_MESSAGE_CONTROL3(GpuMsg_DestroyGpuMemoryBuffer,
                      gfx::GpuMemoryBufferId, /* id */
                      int32_t,                /* client_id */
                      gpu::SyncToken /* sync_token */)
 
 // Tells the GPU process to create a context for collecting graphics card
 // information.
 IPC_MESSAGE_CONTROL0(GpuMsg_CollectGraphicsInfo)
 
-// Tells the GPU process to report video_memory information for the task manager
-IPC_MESSAGE_CONTROL0(GpuMsg_GetVideoMemoryUsageStats)
-
 #if defined(OS_ANDROID)
 // Tells the GPU process to wake up the GPU because we're about to draw.
 IPC_MESSAGE_CONTROL0(GpuMsg_WakeUpGpu)
 
 // Tells the GPU process to release the surface because it's being destroyed.
 IPC_MESSAGE_CONTROL1(GpuMsg_DestroyingVideoSurface, int /* surface_id */)
 #endif
 
 // Tells the GPU process to remove all contexts.
 IPC_MESSAGE_CONTROL0(GpuMsg_Clean)
@@ skipping 26 matching lines @@
 IPC_MESSAGE_CONTROL1(GpuMsg_LoadedShader, std::string /* encoded shader */)
 
 // Response from GPU to a GpuMsg_CreateGpuMemoryBuffer message.
 IPC_MESSAGE_CONTROL1(GpuHostMsg_GpuMemoryBufferCreated,
                      gfx::GpuMemoryBufferHandle /* handle */)
 
 // Response from GPU to a GpuMsg_CollectGraphicsInfo.
 IPC_MESSAGE_CONTROL1(GpuHostMsg_GraphicsInfoCollected,
                      gpu::GPUInfo /* GPU logging stats */)
 
-// Response from GPU to a GpuMsg_GetVideoMemory.
-IPC_MESSAGE_CONTROL1(GpuHostMsg_VideoMemoryUsageStats,
-                     gpu::VideoMemoryUsageStats /* GPU memory stats */)
-
 #if defined(OS_ANDROID)
 // Response to a GpuMsg_DestroyingVideoSurface message.
 IPC_MESSAGE_CONTROL1(GpuHostMsg_DestroyingVideoSurfaceAck,
                      int /* surface_id */)
 #endif
 
 // Message from GPU to add a GPU log message to the about:gpu page.
 IPC_MESSAGE_CONTROL3(GpuHostMsg_OnLogMessage,
                      int /*severity*/,
                      std::string /* header */,
                      std::string /* message */)
 
 // Sent by the GPU process to indicate that a fields trial has been activated.
 IPC_MESSAGE_CONTROL1(GpuHostMsg_FieldTrialActivated, std::string /* name */)