Remove redundant emptiness check from genericParseNumber

third_party/WebKit/Source/core/svg/SVGParserUtilities.cpp

Index: third_party/WebKit/Source/core/svg/SVGParserUtilities.cpp
diff --git a/third_party/WebKit/Source/core/svg/SVGParserUtilities.cpp b/third_party/WebKit/Source/core/svg/SVGParserUtilities.cpp
index f1af2cb4321e092b42b380458087a50be2a7f407..d098d3f09a1b49a97e83f4dcf1e7183259be5ad6 100644
--- a/third_party/WebKit/Source/core/svg/SVGParserUtilities.cpp
+++ b/third_party/WebKit/Source/core/svg/SVGParserUtilities.cpp
@@ -42,7 +42,6 @@ static bool genericParseNumber(const CharType*& ptr, const CharType* end, FloatT
 {
     FloatType integer, decimal, frac, exponent;
     int sign, expsign;
-    const CharType* start = ptr;
 
     exponent = 0;
     integer = 0;
@@ -67,14 +66,14 @@ static bool genericParseNumber(const CharType*& ptr, const CharType* end, FloatT
         return false;
 
     // read the integer part, build right-to-left
-    const CharType* ptrStartIntPart = ptr;
+    const CharType* digitsStart = ptr;
     while (ptr < end && *ptr >= '0' && *ptr <= '9')
         ++ptr; // Advance to first non-digit.
 
-    if (ptr != ptrStartIntPart) {
+    if (ptr != digitsStart) {
         const CharType* ptrScanIntPart = ptr - 1;
         FloatType multiplier = 1;
-        while (ptrScanIntPart >= ptrStartIntPart) {
+        while (ptrScanIntPart >= digitsStart) {
             integer += multiplier * static_cast<FloatType>(*(ptrScanIntPart--) - '0');
             multiplier *= 10;
         }
@@ -94,8 +93,12 @@ static bool genericParseNumber(const CharType*& ptr, const CharType* end, FloatT
             decimal += (*(ptr++) - '0') * (frac *= static_cast<FloatType>(0.1));
     }
 
+    // When we get here we should have consumed either a digit for the integer
+    // part or a fractional part (with at least one digit after the '.'.)
+    ASSERT(digitsStart != ptr);
+
     // read the exponent part
-    if (ptr != start && ptr + 1 < end && (*ptr == 'e' || *ptr == 'E')
+    if (ptr + 1 < end && (*ptr == 'e' || *ptr == 'E')
         && (ptr[1] != 'x' && ptr[1] != 'm')) {
         ptr++;
 
@@ -131,9 +134,6 @@ static bool genericParseNumber(const CharType*& ptr, const CharType* end, FloatT
     if (!isValidRange(number))
         return false;
 
-    if (start == ptr)
-        return false;
-
     if (mode & AllowTrailingWhitespace)
         skipOptionalSVGSpacesOrDelimiter(ptr, end);