Add the magnifier shortcut keys (Ctrl+F6/F7) for debugging.

Original shortcut keys (Ctrl+Alt+F6/F7) are often the keys to switch VTs and cannot be used as the magnifier shortcuts on almost all Linux workstations.

This CL adds additional shortcut keys only for debug mode.

BUG=none
TEST=manual

Review URL: https://codereview.chromium.org/11421223

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@171121 0039d316-1c4b-4281-b951-d872f2087c98

ash/accelerators/accelerator_table.cc

@@ -65,6 +65,9 @@ const AcceleratorData kAcceleratorData[] = {
   { true, ui::VKEY_POWER, ui::EF_NONE, POWER_PRESSED },
   { false, ui::VKEY_POWER, ui::EF_NONE, POWER_RELEASED },
 #if !defined(NDEBUG)
+  // Extra shortcut for debug build to control magnifier on linux desktop.
+  { true, ui::VKEY_F6, ui::EF_CONTROL_DOWN, MAGNIFY_SCREEN_ZOOM_OUT},
+  { true, ui::VKEY_F7, ui::EF_CONTROL_DOWN, MAGNIFY_SCREEN_ZOOM_IN},
   // Extra shortcut for debug build to activate lock screen on linux desktop.
   { true, ui::VKEY_L, ui::EF_ALT_DOWN, LOCK_SCREEN },
   // Extra shortcut for display swaping as alt-f4 is taken on linux desktop.