Disable FontName, FontSize, and FontSizeDelta commands in contenteditable=plaintext-only.

third_party/WebKit/Source/core/editing/commands/EditorCommand.cpp

Index: third_party/WebKit/Source/core/editing/commands/EditorCommand.cpp
diff --git a/third_party/WebKit/Source/core/editing/commands/EditorCommand.cpp b/third_party/WebKit/Source/core/editing/commands/EditorCommand.cpp
index 046db31e9322c09c370e34c9c4fd41a2c656c8f1..c9613857a12417ec29c5a73dcc48b0ee04112dc5 100644
--- a/third_party/WebKit/Source/core/editing/commands/EditorCommand.cpp
+++ b/third_party/WebKit/Source/core/editing/commands/EditorCommand.cpp
@@ -1512,9 +1512,9 @@ static const CommandMap& createCommandMap()
         { "DeleteWordBackward", {20, executeDeleteWordBackward, supportedFromMenuOrKeyBinding, enabledInEditableText, stateNone, valueNull, notTextInsertion, doNotAllowExecutionWhenDisabled } },
         { "DeleteWordForward", {21, executeDeleteWordForward, supportedFromMenuOrKeyBinding, enabledInEditableText, stateNone, valueNull, notTextInsertion, doNotAllowExecutionWhenDisabled } },
         { "FindString", {22, executeFindString, supported, enabled, stateNone, valueNull, notTextInsertion, doNotAllowExecutionWhenDisabled } },
-        { "FontName", {23, executeFontName, supported, enabledInEditableText, stateNone, valueFontName, notTextInsertion, doNotAllowExecutionWhenDisabled } },
-        { "FontSize", {24, executeFontSize, supported, enabledInEditableText, stateNone, valueFontSize, notTextInsertion, doNotAllowExecutionWhenDisabled } },
-        { "FontSizeDelta", {25, executeFontSizeDelta, supported, enabledInEditableText, stateNone, valueFontSizeDelta, notTextInsertion, doNotAllowExecutionWhenDisabled } },
+        { "FontName", {23, executeFontName, supported, enabledInRichlyEditableText, stateNone, valueFontName, notTextInsertion, doNotAllowExecutionWhenDisabled } },
+        { "FontSize", {24, executeFontSize, supported, enabledInRichlyEditableText, stateNone, valueFontSize, notTextInsertion, doNotAllowExecutionWhenDisabled } },
+        { "FontSizeDelta", {25, executeFontSizeDelta, supported, enabledInRichlyEditableText, stateNone, valueFontSizeDelta, notTextInsertion, doNotAllowExecutionWhenDisabled } },
         { "ForeColor", {26, executeForeColor, supported, enabledInRichlyEditableText, stateNone, valueForeColor, notTextInsertion, doNotAllowExecutionWhenDisabled } },
         { "FormatBlock", {27, executeFormatBlock, supported, enabledInRichlyEditableText, stateNone, valueFormatBlock, notTextInsertion, doNotAllowExecutionWhenDisabled } },
         { "ForwardDelete", {28, executeForwardDelete, supported, enabledInEditableText, stateNone, valueNull, notTextInsertion, doNotAllowExecutionWhenDisabled } },