Bug 1251519 Part 1 - Remove nsTextFrameBase as an nsFrame alias. r=mats

Bug 655877 Part 20 made this deliberately to let nsTextFrame
QueryFrame-able. https://hg.mozilla.org/mozilla-central/rev/d8c6025c0881

But other types like nsPlaceholderFrame or nsBulletFrame are also
implemented QureyFrame, which do not have this inheritance indirection.
I guess it was for historical reason, and can be removed safely.

MozReview-Commit-ID: CPeQvpKzEKh

--HG--
extra : rebase_source : 86e784648cab3982ff16b3d45a312b98cd963841

layout/generic/nsTextFrame.cpp

@@ -2686,7 +2686,7 @@ BuildTextRunsScanner::AssignTextRun(gfxTextRun* aTextRun, float aInflation)
 
 NS_QUERYFRAME_HEAD(nsTextFrame)
   NS_QUERYFRAME_ENTRY(nsTextFrame)
-NS_QUERYFRAME_TAIL_INHERITING(nsTextFrameBase)
+NS_QUERYFRAME_TAIL_INHERITING(nsFrame)
 
 gfxSkipCharsIterator
 nsTextFrame::EnsureTextRun(TextRunType aWhichTextRun,
@@ -4447,7 +4447,7 @@ nsTextFrame::InvalidateFrame(uint32_t aDisplayItemKey)
     svgTextFrame->InvalidateFrame();
     return;
   }
-  nsTextFrameBase::InvalidateFrame(aDisplayItemKey);
+  nsFrame::InvalidateFrame(aDisplayItemKey);
 }
 
 void
@@ -4460,7 +4460,7 @@ nsTextFrame::InvalidateFrameWithRect(const nsRect& aRect, uint32_t aDisplayItemK
     svgTextFrame->InvalidateFrame();
     return;
   }
-  nsTextFrameBase::InvalidateFrameWithRect(aRect, aDisplayItemKey);
+  nsFrame::InvalidateFrameWithRect(aRect, aDisplayItemKey);
 }
 
 gfxTextRun*

layout/generic/nsTextFrame.h

@@ -28,8 +28,6 @@ class PropertyProvider;
 struct SelectionDetails;
 class nsTextFragment;
 
-typedef nsFrame nsTextFrameBase;
-
 class nsDisplayTextGeometry;
 class nsDisplayText;
 
@@ -39,7 +37,7 @@ public:
   static void Shutdown();
 };
 
-class nsTextFrame : public nsTextFrameBase {
+class nsTextFrame : public nsFrame {
   typedef mozilla::LayoutDeviceRect LayoutDeviceRect;
   typedef mozilla::TextRangeStyle TextRangeStyle;
   typedef mozilla::gfx::DrawTarget DrawTarget;
@@ -57,7 +55,7 @@ public:
   friend class nsDisplayText;
 
   explicit nsTextFrame(nsStyleContext* aContext)
-    : nsTextFrameBase(aContext)
+    : nsFrame(aContext)
   {
     NS_ASSERTION(mContentOffset == 0, "Bogus content offset");
   }