PyAuto test for GPU memory consumption

content/common/gpu/gpu_messages.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.
 
 // Multiply-included message file, hence no include guard here, but see below
 // for a much smaller-than-usual include guard section.
 
 #include <string>
 #include <vector>
 
 #include "base/shared_memory.h"
 #include "content/common/content_export.h"
 #include "content/common/gpu/gpu_memory_allocation.h"
 #include "content/common/gpu/gpu_process_launch_causes.h"
 #include "content/public/common/common_param_traits.h"
 #include "content/public/common/gpu_info.h"
+#include "content/public/common/gpu_mem_stats.h"
 #include "gpu/command_buffer/common/command_buffer.h"
 #include "gpu/command_buffer/common/constants.h"
 #include "gpu/ipc/gpu_command_buffer_traits.h"
 #include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_message_macros.h"
 #include "media/video/video_decode_accelerator.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/size.h"
 #include "ui/gl/gpu_preference.h"
 #include "ui/surface/transport_dib.h"
@@ skipping 99 matching lines @@
   IPC_STRUCT_TRAITS_MEMBER(gl_extensions)
   IPC_STRUCT_TRAITS_MEMBER(can_lose_context)
   IPC_STRUCT_TRAITS_MEMBER(gpu_accessible)
   IPC_STRUCT_TRAITS_MEMBER(performance_stats)
   IPC_STRUCT_TRAITS_MEMBER(software_rendering)
 #if defined(OS_WIN)
   IPC_STRUCT_TRAITS_MEMBER(dx_diagnostics)
 #endif
 IPC_STRUCT_TRAITS_END()
 
+IPC_STRUCT_TRAITS_BEGIN(content::GpuMemStats)
+  IPC_STRUCT_TRAITS_MEMBER(total_bytes)
+  IPC_STRUCT_TRAITS_MEMBER(currently_allocated_bytes)
+  IPC_STRUCT_TRAITS_MEMBER(max_concurrently_allocated_bytes)
+IPC_STRUCT_TRAITS_END()
+
 IPC_STRUCT_TRAITS_BEGIN(GpuMemoryAllocationForRenderer)
   IPC_STRUCT_TRAITS_MEMBER(gpu_resource_size_in_bytes)
   IPC_STRUCT_TRAITS_MEMBER(suggest_have_backbuffer)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(gfx::GLSurfaceHandle)
   IPC_STRUCT_TRAITS_MEMBER(handle)
   IPC_STRUCT_TRAITS_MEMBER(transport)
   IPC_STRUCT_TRAITS_MEMBER(parent_gpu_process_id)
   IPC_STRUCT_TRAITS_MEMBER(parent_client_id)
@@ skipping 39 matching lines @@
 IPC_MESSAGE_CONTROL4(GpuMsg_CreateViewCommandBuffer,
                      gfx::GLSurfaceHandle, /* compositing_surface */
                      int32, /* surface_id */
                      int32, /* client_id */
                      GPUCreateCommandBufferConfig /* init_params */)
 
 // Tells the GPU process to create a context for collecting graphics card
 // information.
 IPC_MESSAGE_CONTROL0(GpuMsg_CollectGraphicsInfo)
 
+// Tells the GPU process to report memory usage statistics to the browser
+IPC_MESSAGE_CONTROL0(GpuMsg_GetMemStats)
+
 // Tells the GPU process that the browser process has finished resizing the
 // view.
 IPC_MESSAGE_ROUTED0(AcceleratedSurfaceMsg_ResizeViewACK)
 
 // Tells the GPU process that it's safe to start rendering to the surface.
 IPC_MESSAGE_ROUTED2(AcceleratedSurfaceMsg_NewACK,
                     uint64 /* surface_handle */,
                     TransportDIB::Handle /* shared memory buffer */)
 
 // Tells the GPU process that the browser process has handled the swap
@@ skipping 41 matching lines @@
 
 // Request from GPU to free the browser resources associated with the
 // command buffer.
 IPC_MESSAGE_CONTROL1(GpuHostMsg_DestroyCommandBuffer,
                      int32 /* surface_id */)
 
 // Response from GPU to a GpuMsg_CollectGraphicsInfo.
 IPC_MESSAGE_CONTROL1(GpuHostMsg_GraphicsInfoCollected,
                      content::GPUInfo /* GPU logging stats */)
 
+// Response from GPU to a GpuMsg_GetMemStats.
+IPC_MESSAGE_CONTROL1(GpuHostMsg_MemStats,
+                     content::GpuMemStats /* GPU memory usage stats */)
+
 // 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 */)
 
 // Resize the window that is being drawn into. It's important that this
 // resize be synchronized with the swapping of the front and back buffers.
 IPC_MESSAGE_CONTROL3(GpuHostMsg_ResizeView,
                      int32 /* surface_id */,
@@ skipping 265 matching lines @@
 
 // Confirm decoder has been flushed.
 IPC_MESSAGE_ROUTED0(AcceleratedVideoDecoderHostMsg_FlushDone)
 
 // Confirm decoder has been reset.
 IPC_MESSAGE_ROUTED0(AcceleratedVideoDecoderHostMsg_ResetDone)
 
 // Video decoder has encountered an error.
 IPC_MESSAGE_ROUTED1(AcceleratedVideoDecoderHostMsg_ErrorNotification,
                     uint32) /* Error ID */