Convert ByteString::{Format|FormatV} to static methods

This CL moves the Format and FormatV methods of ByteString to be static.

Bug: pdfium:934
Change-Id: I9c30455a789aff9f619b9d5bf89c0712644f2d9a
Reviewed-on: https://pdfium-review.googlesource.com/18650
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>

3 files changed, 19 insertions, 34 deletions

diff --git a/fxjs/cfxjse_class.cpp b/fxjs/cfxjse_class.cpp
index 8f4334f89e..b2e747b4fd 100644
--- a/fxjs/cfxjse_class.cpp
+++ b/fxjs/cfxjse_class.cpp
@@ -108,8 +108,7 @@ void Context_GlobalObjToString(
     return;
 
   if (info.This() == info.Holder() && lpClass->name) {
-    ByteString szStringVal;
-    szStringVal.Format("[object %s]", lpClass->name);
+    ByteString szStringVal = ByteString::Format("[object %s]", lpClass->name);
     info.GetReturnValue().Set(v8::String::NewFromUtf8(
         info.GetIsolate(), szStringVal.c_str(), v8::String::kNormalString,
         szStringVal.GetLength()));
diff --git a/fxjs/cfxjse_formcalc_context.cpp b/fxjs/cfxjse_formcalc_context.cpp
index dfd381625c..f3c4ebe462 100644
--- a/fxjs/cfxjse_formcalc_context.cpp
+++ b/fxjs/cfxjse_formcalc_context.cpp
@@ -1114,16 +1114,10 @@ void CFXJSE_FormCalcContext::Date(CFXJSE_Value* pThis,
   time(&currentTime);
   struct tm* pTmStruct = gmtime(&currentTime);
 
-  ByteString bufferYear;
-  ByteString bufferMon;
-  ByteString bufferDay;
-  bufferYear.Format("%d", pTmStruct->tm_year + 1900);
-  bufferMon.Format("%02d", pTmStruct->tm_mon + 1);
-  bufferDay.Format("%02d", pTmStruct->tm_mday);
-
-  ByteString bufferCurrent = bufferYear + bufferMon + bufferDay;
-  args.GetReturnValue()->SetInteger(
-      DateString2Num(bufferCurrent.AsStringView()));
+  args.GetReturnValue()->SetInteger(DateString2Num(
+      ByteString::Format("%d%02d%02d", pTmStruct->tm_year + 1900,
+                         pTmStruct->tm_mon + 1, pTmStruct->tm_mday)
+          .AsStringView()));
 }
 
 // static
@@ -1489,11 +1483,10 @@ void CFXJSE_FormCalcContext::Num2Date(CFXJSE_Value* pThis,
     }
   }
 
-  ByteString szIsoDateString;
-  szIsoDateString.Format("%d%02d%02d", iYear + i, iMonth, iDay);
-  ByteString szLocalDateString =
-      IsoDate2Local(pThis, szIsoDateString.AsStringView(),
-                    formatString.AsStringView(), localString.AsStringView());
+  ByteString szLocalDateString = IsoDate2Local(
+      pThis,
+      ByteString::Format("%d%02d%02d", iYear + i, iMonth, iDay).AsStringView(),
+      formatString.AsStringView(), localString.AsStringView());
   args.GetReturnValue()->SetString(szLocalDateString.AsStringView());
 }
 
@@ -2019,9 +2012,8 @@ ByteString CFXJSE_FormCalcContext::Local2IsoDate(
                                      wsFormat, pLocale, pMgr)
                         .GetDate();
 
-  ByteString strIsoDate;
-  strIsoDate.Format("%4d-%02d-%02d", dt.GetYear(), dt.GetMonth(), dt.GetDay());
-  return strIsoDate;
+  return ByteString::Format("%4d-%02d-%02d", dt.GetYear(), dt.GetMonth(),
+                            dt.GetDay());
 }
 
 // static
@@ -2213,9 +2205,10 @@ ByteString CFXJSE_FormCalcContext::Num2AllTime(CFXJSE_Value* pThis,
     iSec += iZoneSec;
   }
 
-  ByteString strIsoTime;
-  strIsoTime.Format("%02d:%02d:%02d", iHour, iMin, iSec);
-  return IsoTime2Local(pThis, strIsoTime.AsStringView(), szFormat, szLocale);
+  return IsoTime2Local(
+      pThis,
+      ByteString::Format("%02d:%02d:%02d", iHour, iMin, iSec).AsStringView(),
+      szFormat, szLocale);
 }
 
 // static
@@ -4232,14 +4225,13 @@ void CFXJSE_FormCalcContext::Str(CFXJSE_Value* pThis,
         0, static_cast<int32_t>(ValueToFloat(pThis, precisionValue.get())));
   }
 
-  ByteString numberString;
   ByteString formatStr = "%";
   if (iPrecision) {
     formatStr += ".";
     formatStr += ByteString::FormatInteger(iPrecision);
   }
   formatStr += "f";
-  numberString.Format(formatStr.c_str(), fNumber);
+  ByteString numberString = ByteString::Format(formatStr.c_str(), fNumber);
 
   const char* pData = numberString.c_str();
   int32_t iLength = numberString.GetLength();
@@ -4505,11 +4497,8 @@ void CFXJSE_FormCalcContext::WordNum(CFXJSE_Value* pThis,
     return;
   }
 
-  ByteString numberString;
-  numberString.Format("%.2f", fNumber);
-
   args.GetReturnValue()->SetString(
-      WordUS(numberString, iIdentifier).AsStringView());
+      WordUS(ByteString::Format("%.2f", fNumber), iIdentifier).AsStringView());
 }
 
 // static
diff --git a/fxjs/cjx_node.cpp b/fxjs/cjx_node.cpp
index b89101ce17..07b96b895f 100644
--- a/fxjs/cjx_node.cpp
+++ b/fxjs/cjx_node.cpp
@@ -1761,15 +1761,12 @@ void CJX_Node::Script_Som_FontColor(CFXJSE_Value* pValue,
     return;
   }
 
-  FX_ARGB color = fontData.GetColor();
   int32_t a;
   int32_t r;
   int32_t g;
   int32_t b;
-  std::tie(a, r, g, b) = ArgbDecode(color);
-  ByteString bsColor;
-  bsColor.Format("%d,%d,%d", r, g, b);
-  pValue->SetString(bsColor.AsStringView());
+  std::tie(a, r, g, b) = ArgbDecode(fontData.GetColor());
+  pValue->SetString(ByteString::Format("%d,%d,%d", r, g, b).AsStringView());
 }
 
 void CJX_Node::Script_Field_FormatMessage(CFXJSE_Value* pValue,