First draft to enable turning off compositor for unit tests.

chrome/test/unit/chrome_test_suite.cc

Index: chrome/test/unit/chrome_test_suite.cc
diff --git a/chrome/test/unit/chrome_test_suite.cc b/chrome/test/unit/chrome_test_suite.cc
index f3e033533c71c3d48a0dc36b0d982b2bf5176afe..3acb89a7dbf2cdc3d2e955163d81e2ccdd3a06e9 100644
--- a/chrome/test/unit/chrome_test_suite.cc
+++ b/chrome/test/unit/chrome_test_suite.cc
@@ -21,6 +21,9 @@
 #include "net/base/net_errors.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/ui_base_paths.h"
+#if defined(TOOLKIT_VIEWS)
+#include "views/view.h"
+#endif
 
 #if defined(OS_MACOSX)
 #include "base/mac/mac_util.h"
@@ -141,6 +144,11 @@ void ChromeTestSuite::Initialize() {
   RemoveSharedMemoryFile(stats_filename_);
   stats_table_ = new base::StatsTable(stats_filename_, 20, 200);
   base::StatsTable::set_current(stats_table_);
+
+#if defined(TOUCH_UI)
+  // Turn of GPU compositing in browser during unit tests.
+  views::View::set_use_acceleration_when_possible(false);
+#endif
 }
 
 void ChromeTestSuite::Shutdown() {