ozone: Introduce ClientPixmap and ClientPixmapFactory for non-GPU processes.

content/browser/browser_main_loop.cc

Index: content/browser/browser_main_loop.cc
diff --git a/content/browser/browser_main_loop.cc b/content/browser/browser_main_loop.cc
index 0e38b9ceae3e5dcd100b66964411ab3b9868b504..70f474c20e7539253785f4ced44e0715d791e8bf 100644
--- a/content/browser/browser_main_loop.cc
+++ b/content/browser/browser_main_loop.cc
@@ -108,6 +108,10 @@
 #include "content/browser/theme_helper_mac.h"
 #endif
 
+#if defined(USE_OZONE)
+#include "ui/ozone/public/client_native_pixmap_factory.h"
+#endif
+
 #if defined(OS_WIN)
 #include <windows.h>
 #include <commctrl.h>
@@ -614,6 +618,12 @@ void BrowserMainLoop::PostMainMessageLoopStart() {
   }
 #endif
 
+#if defined(USE_OZONE)
+  client_native_pixmap_factory_ = ui::ClientNativePixmapFactory::Create();
+  ui::ClientNativePixmapFactory::SetInstance(
+      client_native_pixmap_factory_.get());
+#endif
+
   if (parsed_command_line_.HasSwitch(switches::kMemoryMetrics)) {
     TRACE_EVENT0("startup", "BrowserMainLoop::Subsystem:MemoryObserver");
     memory_observer_.reset(new MemoryObserver());