Re-land else-after-returns

Revert "Revert "Fix else-after-returns throughout pdfium.""
This reverts commit 4eb4d7f6c707cc2c23c806aa540d055c8832b55d.

Fix one naming conflict.

TBR=thestig@chromium.org

Review URL: https://codereview.chromium.org/1243953004 .

4 files changed, 26 insertions, 21 deletions

diff --git a/core/src/fxcrt/fx_basic_array.cpp b/core/src/fxcrt/fx_basic_array.cpp
index 56b2f57f3c..4ab34bb022 100644
--- a/core/src/fxcrt/fx_basic_array.cpp
+++ b/core/src/fxcrt/fx_basic_array.cpp
@@ -243,7 +243,8 @@ void** CFX_BaseSegmentedArray::GetIndex(int seg_index) const
     ASSERT(m_IndexDepth != 0);
     if (m_IndexDepth == 1) {
         return (void**)m_pIndex;
-    } else if (m_IndexDepth == 2) {
+    }
+    if (m_IndexDepth == 2) {
         return (void**)((void**)m_pIndex)[seg_index / m_IndexSize];
     }
     int tree_size = 1;
diff --git a/core/src/fxcrt/fx_basic_bstring.cpp b/core/src/fxcrt/fx_basic_bstring.cpp
index 9f54414110..5eeb33b049 100644
--- a/core/src/fxcrt/fx_basic_bstring.cpp
+++ b/core/src/fxcrt/fx_basic_bstring.cpp
@@ -132,10 +132,9 @@ CFX_ByteString::CFX_ByteString(const CFX_ByteStringC& stringSrc)
     if (stringSrc.IsEmpty()) {
         m_pData = NULL;
         return;
-    } else {
-        m_pData = NULL;
-        *this = stringSrc;
     }
+    m_pData = NULL;
+    *this = stringSrc;
 }
 CFX_ByteString::CFX_ByteString(const CFX_ByteStringC& str1, const CFX_ByteStringC& str2)
 {
@@ -971,13 +970,15 @@ int CFX_ByteString::Compare(const CFX_ByteStringC& str) const
     for (int i = 0; i < min_len; i ++) {
         if ((uint8_t)m_pData->m_String[i] < str.GetAt(i)) {
             return -1;
-        } else if ((uint8_t)m_pData->m_String[i] > str.GetAt(i)) {
+        }
+        if ((uint8_t)m_pData->m_String[i] > str.GetAt(i)) {
             return 1;
         }
     }
     if (this_len < that_len) {
         return -1;
-    } else if (this_len > that_len) {
+    }
+    if (this_len > that_len) {
         return 1;
     }
     return 0;
diff --git a/core/src/fxcrt/fx_basic_util.cpp b/core/src/fxcrt/fx_basic_util.cpp
index f23bf4bc27..26eeacce1b 100644
--- a/core/src/fxcrt/fx_basic_util.cpp
+++ b/core/src/fxcrt/fx_basic_util.cpp
@@ -457,18 +457,18 @@ CFX_Matrix_3by3 CFX_Matrix_3by3::Inverse()
     FX_FLOAT det = a*(e*i - f*h) - b*(i*d - f*g) + c*(d*h - e*g);
     if (FXSYS_fabs(det) < 0.0000001)
         return CFX_Matrix_3by3();
-    else
-        return CFX_Matrix_3by3(
-            (e*i - f*h) / det,
-            -(b*i - c*h) / det,
-            (b*f - c*e) / det,
-            -(d*i - f*g) / det,
-            (a*i - c*g) / det,
-            -(a*f - c*d) / det,
-            (d*h - e*g) / det,
-            -(a*h - b*g) / det,
-            (a*e - b*d) / det
-        );
+
+    return CFX_Matrix_3by3(
+        (e*i - f*h) / det,
+        -(b*i - c*h) / det,
+        (b*f - c*e) / det,
+        -(d*i - f*g) / det,
+        (a*i - c*g) / det,
+        -(a*f - c*d) / det,
+        (d*h - e*g) / det,
+        -(a*h - b*g) / det,
+        (a*e - b*d) / det
+    );
 }
 
 CFX_Matrix_3by3 CFX_Matrix_3by3::Multiply(const CFX_Matrix_3by3 &m)
diff --git a/core/src/fxcrt/fx_basic_wstring.cpp b/core/src/fxcrt/fx_basic_wstring.cpp
index 2442daed27..b6b595588d 100644
--- a/core/src/fxcrt/fx_basic_wstring.cpp
+++ b/core/src/fxcrt/fx_basic_wstring.cpp
@@ -485,7 +485,8 @@ int CFX_WideString::Compare(const CFX_WideString& str) const
             return 0;
         }
         return -1;
-    } else if (str.m_pData == NULL) {
+    }
+    if (str.m_pData == NULL) {
         return 1;
     }
     int this_len = m_pData->m_nDataLength;
@@ -494,13 +495,15 @@ int CFX_WideString::Compare(const CFX_WideString& str) const
     for (int i = 0; i < min_len; i ++) {
         if (m_pData->m_String[i] < str.m_pData->m_String[i]) {
             return -1;
-        } else if (m_pData->m_String[i] > str.m_pData->m_String[i]) {
+        }
+        if (m_pData->m_String[i] > str.m_pData->m_String[i]) {
             return 1;
         }
     }
     if (this_len < that_len) {
         return -1;
-    } else if (this_len > that_len) {
+    }
+    if (this_len > that_len) {
         return 1;
     }
     return 0;