ASSERT -> DCHECK in core/editing.

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 a9c9fd3ade529c8a4ebbebcdc1eb128ba0ad4b1b..82083270ba88e8e87d95e13427ba8b1e7586305c 100644
--- a/third_party/WebKit/Source/core/editing/commands/EditorCommand.cpp
+++ b/third_party/WebKit/Source/core/editing/commands/EditorCommand.cpp
@@ -231,13 +231,13 @@ static bool executeApplyParagraphStyle(LocalFrame& frame, EditorCommandSource so
 
 static bool executeInsertFragment(LocalFrame& frame, DocumentFragment* fragment)
 {
-    ASSERT(frame.document());
+    DCHECK(frame.document());
     return ReplaceSelectionCommand::create(*frame.document(), fragment, ReplaceSelectionCommand::PreventNesting, EditActionUnspecified)->apply();
 }
 
 static bool executeInsertElement(LocalFrame& frame, HTMLElement* content)
 {
-    ASSERT(frame.document());
+    DCHECK(frame.document());
     DocumentFragment* fragment = DocumentFragment::create(*frame.document());
     TrackExceptionState exceptionState;
     fragment->appendChild(content, exceptionState);
@@ -356,7 +356,7 @@ static bool executeCreateLink(LocalFrame& frame, Event*, EditorCommandSource, co
 {
     if (value.isEmpty())
         return false;
-    ASSERT(frame.document());
+    DCHECK(frame.document());
     return CreateLinkCommand::create(*frame.document(), value)->apply();
 }
 
@@ -394,7 +394,7 @@ static bool executeDelete(LocalFrame& frame, Event*, EditorCommandSource source,
     case CommandFromDOM:
         // If the current selection is a caret, delete the preceding character. IE performs forwardDelete, but we currently side with Firefox.
         // Doesn't scroll to make the selection visible, or modify the kill ring (this time, siding with IE, not Firefox).
-        ASSERT(frame.document());
+        DCHECK(frame.document());
         TypingCommand::deleteKeyPressed(*frame.document(), frame.selection().granularity() == WordGranularity ? TypingCommand::SmartDelete : 0);
         return true;
     }
@@ -454,7 +454,7 @@ static bool executeDeleteToMark(LocalFrame& frame, Event*, EditorCommandSource,
     const EphemeralRange mark = frame.editor().mark().toNormalizedEphemeralRange();
     if (mark.isNotNull()) {
         bool selected = frame.selection().setSelectedRange(unionEphemeralRanges(mark, frame.editor().selectedRange()), TextAffinity::Downstream, SelectionDirectionalMode::NonDirectional, FrameSelection::CloseTyping);
-        ASSERT(selected);
+        DCHECK(selected);
         if (!selected)
             return false;
     }
@@ -514,7 +514,7 @@ static bool executeFormatBlock(LocalFrame& frame, Event*, EditorCommandSource, c
         return false;
     QualifiedName qualifiedTagName(prefix, localName, xhtmlNamespaceURI);
 
-    ASSERT(frame.document());
+    DCHECK(frame.document());
     FormatBlockCommand* command = FormatBlockCommand::create(*frame.document(), qualifiedTagName);
     command->apply();
     return command->didApply();
@@ -531,7 +531,7 @@ static bool executeForwardDelete(LocalFrame& frame, Event*, EditorCommandSource
         // Doesn't scroll to make the selection visible, or modify the kill ring.
         // ForwardDelete is not implemented in IE or Firefox, so this behavior is only needed for
         // backward compatibility with ourselves, and for consistency with Delete.
-        ASSERT(frame.document());
+        DCHECK(frame.document());
         TypingCommand::forwardDeleteKeyPressed(*frame.document(), &editingState);
         if (editingState.isAborted())
             return false;
@@ -549,7 +549,7 @@ static bool executeIgnoreSpelling(LocalFrame& frame, Event*, EditorCommandSource
 
 static bool executeIndent(LocalFrame& frame, Event*, EditorCommandSource, const String&)
 {
-    ASSERT(frame.document());
+    DCHECK(frame.document());
     return IndentOutdentCommand::create(*frame.document(), IndentOutdentCommand::Indent)->apply();
 }
 
@@ -560,7 +560,7 @@ static bool executeInsertBacktab(LocalFrame& frame, Event* event, EditorCommandS
 
 static bool executeInsertHorizontalRule(LocalFrame& frame, Event*, EditorCommandSource, const String& value)
 {
-    ASSERT(frame.document());
+    DCHECK(frame.document());
     HTMLHRElement* rule = HTMLHRElement::create(*frame.document());
     if (!value.isEmpty())
         rule->setIdAttribute(AtomicString(value));
@@ -569,13 +569,13 @@ static bool executeInsertHorizontalRule(LocalFrame& frame, Event*, EditorCommand
 
 static bool executeInsertHTML(LocalFrame& frame, Event*, EditorCommandSource, const String& value)
 {
-    ASSERT(frame.document());
+    DCHECK(frame.document());
     return executeInsertFragment(frame, createFragmentFromMarkup(*frame.document(), value, ""));
 }
 
 static bool executeInsertImage(LocalFrame& frame, Event*, EditorCommandSource, const String& value)
 {
-    ASSERT(frame.document());
+    DCHECK(frame.document());
     HTMLImageElement* image = HTMLImageElement::create(*frame.document());
     if (!value.isEmpty())
         image->setSrc(value);
@@ -591,7 +591,7 @@ static bool executeInsertLineBreak(LocalFrame& frame, Event* event, EditorComman
         // Doesn't scroll to make the selection visible, or modify the kill ring.
         // InsertLineBreak is not implemented in IE or Firefox, so this behavior is only needed for
         // backward compatibility with ourselves, and for consistency with other commands.
-        ASSERT(frame.document());
+        DCHECK(frame.document());
         return TypingCommand::insertLineBreak(*frame.document());
     }
     ASSERT_NOT_REACHED();
@@ -606,19 +606,19 @@ static bool executeInsertNewline(LocalFrame& frame, Event* event, EditorCommandS
 
 static bool executeInsertNewlineInQuotedContent(LocalFrame& frame, Event*, EditorCommandSource, const String&)
 {
-    ASSERT(frame.document());
+    DCHECK(frame.document());
     return TypingCommand::insertParagraphSeparatorInQuotedContent(*frame.document());
 }
 
 static bool executeInsertOrderedList(LocalFrame& frame, Event*, EditorCommandSource, const String&)
 {
-    ASSERT(frame.document());
+    DCHECK(frame.document());
     return InsertListCommand::create(*frame.document(), InsertListCommand::OrderedList)->apply();
 }
 
 static bool executeInsertParagraph(LocalFrame& frame, Event*, EditorCommandSource, const String&)
 {
-    ASSERT(frame.document());
+    DCHECK(frame.document());
     return TypingCommand::insertParagraphSeparator(*frame.document());
 }
 
@@ -629,14 +629,14 @@ static bool executeInsertTab(LocalFrame& frame, Event* event, EditorCommandSourc
 
 static bool executeInsertText(LocalFrame& frame, Event*, EditorCommandSource, const String& value)
 {
-    ASSERT(frame.document());
+    DCHECK(frame.document());
     TypingCommand::insertText(*frame.document(), value, 0);
     return true;
 }
 
 static bool executeInsertUnorderedList(LocalFrame& frame, Event*, EditorCommandSource, const String&)
 {
-    ASSERT(frame.document());
+    DCHECK(frame.document());
     return InsertListCommand::create(*frame.document(), InsertListCommand::UnorderedList)->apply();
 }
 
@@ -984,7 +984,7 @@ static bool executeMoveToRightEndOfLineAndModifySelection(LocalFrame& frame, Eve
 
 static bool executeOutdent(LocalFrame& frame, Event*, EditorCommandSource, const String&)
 {
-    ASSERT(frame.document());
+    DCHECK(frame.document());
     return IndentOutdentCommand::create(*frame.document(), IndentOutdentCommand::Outdent)->apply();
 }
 
@@ -1204,7 +1204,7 @@ static bool executeUndo(LocalFrame& frame, Event*, EditorCommandSource, const St
 
 static bool executeUnlink(LocalFrame& frame, Event*, EditorCommandSource, const String&)
 {
-    ASSERT(frame.document());
+    DCHECK(frame.document());
     return UnlinkCommand::create(*frame.document())->apply();
 }
 
@@ -1735,9 +1735,9 @@ Editor::Command::Command(const EditorInternalCommand* command, EditorCommandSour
 {
     // Use separate assertions so we can tell which bad thing happened.
     if (!command)
-        ASSERT(!m_frame);
+        DCHECK(!m_frame);
     else
-        ASSERT(m_frame);
+        DCHECK(m_frame);
 }
 
 bool Editor::Command::execute(const String& parameter, Event* triggeringEvent) const