gpu: Remove map_image field from gpu::Capabilities.

content/common/gpu/client/command_buffer_proxy_impl.cc

Index: content/common/gpu/client/command_buffer_proxy_impl.cc
diff --git a/content/common/gpu/client/command_buffer_proxy_impl.cc b/content/common/gpu/client/command_buffer_proxy_impl.cc
index 904e5b06b4a293fbe62bc4c7e86f44e265629a6a..393e74335d36a6c9d97abb835734dda88155db3e 100644
--- a/content/common/gpu/client/command_buffer_proxy_impl.cc
+++ b/content/common/gpu/client/command_buffer_proxy_impl.cc
@@ -166,8 +166,6 @@ bool CommandBufferProxyImpl::Initialize() {
     return false;
   }
 
-  capabilities_.map_image = true;
-
   return true;
 }
 
@@ -381,10 +379,6 @@ void CommandBufferProxyImpl::SetContextLostReason(
   NOTREACHED();
 }
 
-gpu::Capabilities CommandBufferProxyImpl::GetCapabilities() {
-  return capabilities_;
-}
-
 gfx::GpuMemoryBuffer* CommandBufferProxyImpl::CreateGpuMemoryBuffer(
     size_t width,
     size_t height,