Implement blacklist's force GPU capability in dual GPU machines.

ui/gl/gl_switches.cc

Index: ui/gl/gl_switches.cc
===================================================================
--- ui/gl/gl_switches.cc	(revision 156195)
+++ ui/gl/gl_switches.cc	(working copy)
@@ -48,8 +48,17 @@
 // Simulates a slow GPU.
 const char kGpuSwapDelay[]                  = "gpu-swap-delay";
 
+// Overwrite the default GPU automatic switching behavior to force on
+// integrated GPU or discrete GPU.
+const char kGpuSwitching[]                  = "gpu-switching";
+
+const char kGpuSwitchingOptionNameForceIntegrated[] = "force_integrated";
+const char kGpuSwitchingOptionNameForceDiscrete[]   = "force_discrete";
+const char kGpuSwitchingOptionNameAutomatic[]   = "automatic";
+
 // Flag used for Linux tests: for desktop GL bindings, try to load this GL
 // library first, but fall back to regular library if loading fails.
 const char kTestGLLib[]                     = "test-gl-lib";
 
 }  // namespace switches
+

[jam, 2012/09/21 20:42:04]

nit: remove