gpu: Replace GpuMsg_CollectGraphicsInfo with mojom API.

content/common/gpu_host_messages.h

Index: content/common/gpu_host_messages.h
diff --git a/content/common/gpu_host_messages.h b/content/common/gpu_host_messages.h
index b7855a865160c038b6b10a0608a1b114b4fde973..34ea6e58d007115ca74ba73840ed6f9e92db3ea0 100644
--- a/content/common/gpu_host_messages.h
+++ b/content/common/gpu_host_messages.h
@@ -99,10 +99,6 @@ IPC_MESSAGE_CONTROL3(GpuMsg_DestroyGpuMemoryBuffer,
                      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 that the browser has seen a GPU switch.
 IPC_MESSAGE_CONTROL0(GpuMsg_GpuSwitched)
 
@@ -120,10 +116,6 @@ IPC_MESSAGE_CONTROL3(GpuHostMsg_Initialized,
 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 */)
-
 // Message from GPU to add a GPU log message to the about:gpu page.
 IPC_MESSAGE_CONTROL3(GpuHostMsg_OnLogMessage,
                      int /*severity*/,