diff --git a/Source/WebCore/platform/text/TextCodecICU.cpp b/Source/WebCore/platform/text/TextCodecICU.cpp

index f6d16cb..f5c0f68 100644

--- a/Source/WebCore/platform/text/TextCodecICU.cpp

+++ b/Source/WebCore/platform/text/TextCodecICU.cpp

@@ -308,7 +308,7 @@ void TextCodecICU::createICUConverter() const

     m_converterICU = ucnv_open(m_canonicalConverterName, &err);

     ASSERT(U_SUCCESS(err));

     if (m_converterICU)

-        ucnv_setFallback(m_converterICU, TRUE);

+        ucnv_setFallback(m_converterICU, true);

 }

 int TextCodecICU::decodeToBuffer(UChar* target, UChar* targetLimit, const char*& source, const char* sourceLimit, int32_t* offsets, bool flush, UErrorCode& err)

diff --git a/Source/WebCore/platform/text/icu/UTextProvider.h b/Source/WebCore/platform/text/icu/UTextProvider.h

index 81a025a..a77aa45 100644

--- a/Source/WebCore/platform/text/icu/UTextProvider.h

+++ b/Source/WebCore/platform/text/icu/UTextProvider.h

@@ -81,12 +81,12 @@ inline bool uTextAccessInChunkOrOutOfRange(UText* text, int64_t nativeIndex, int

             // Ensure chunk offset is well formed if computed offset exceeds int32_t range.

             ASSERT(offset < std::numeric_limits<int32_t>::max());

             text->chunkOffset = offset < std::numeric_limits<int32_t>::max() ? static_cast<int32_t>(offset) : 0;

-            isAccessible = TRUE;

+            isAccessible = true;

             return true;

         }

         if (nativeIndex >= nativeLength && text->chunkNativeLimit == nativeLength) {

             text->chunkOffset = text->chunkLength;

-            isAccessible = FALSE;

+            isAccessible = false;

             return true;

         }

     } else {

@@ -95,12 +95,12 @@ inline bool uTextAccessInChunkOrOutOfRange(UText* text, int64_t nativeIndex, int

             // Ensure chunk offset is well formed if computed offset exceeds int32_t range.

             ASSERT(offset < std::numeric_limits<int32_t>::max());

             text->chunkOffset = offset < std::numeric_limits<int32_t>::max() ? static_cast<int32_t>(offset) : 0;

-            isAccessible = TRUE;

+            isAccessible = true;

             return true;

         }

         if (nativeIndex <= 0 && !text->chunkNativeStart) {

             text->chunkOffset = 0;

-            isAccessible = FALSE;

+            isAccessible = false;

             return true;

         }

     }

diff --git a/Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp b/Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp

index ee02763..48ba1eb 100644

--- a/Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp

+++ b/Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp

@@ -100,23 +100,23 @@ static UBool uTextLatin1Access(UText* uText, int64_t index, UBool forward)

         if (index < uText->chunkNativeLimit && index >= uText->chunkNativeStart) {

             // Already inside the buffer. Set the new offset.

             uText->chunkOffset = static_cast<int32_t>(index - uText->chunkNativeStart);

-            return TRUE;

+            return true;

         }

         if (index >= length && uText->chunkNativeLimit == length) {

             // Off the end of the buffer, but we can't get it.

             uText->chunkOffset = static_cast<int32_t>(index - uText->chunkNativeStart);

-            return FALSE;

+            return false;

         }

     } else {

         if (index <= uText->chunkNativeLimit && index > uText->chunkNativeStart) {

             // Already inside the buffer. Set the new offset.

             uText->chunkOffset = static_cast<int32_t>(index - uText->chunkNativeStart);

-            return TRUE;

+            return true;

         }

         if (!index && !uText->chunkNativeStart) {

             // Already at the beginning; can't go any farther.

             uText->chunkOffset = 0;

-            return FALSE;

+            return false;

         }

     }

@@ -144,7 +144,7 @@ static UBool uTextLatin1Access(UText* uText, int64_t index, UBool forward)

     uText->nativeIndexingLimit = uText->chunkLength;

-    return TRUE;

+    return true;

 }

 static int32_t uTextLatin1Extract(UText* uText, int64_t start, int64_t limit, UChar* dest, int32_t destCapacity, UErrorCode* status)

@@ -336,7 +336,7 @@ static int64_t uTextLatin1ContextAwareNativeLength(UText* text)

 static UBool uTextLatin1ContextAwareAccess(UText* text, int64_t nativeIndex, UBool forward)

 {

     if (!text->context)

-        return FALSE;

+        return false;

     int64_t nativeLength = uTextLatin1ContextAwareNativeLength(text);

     UBool isAccessible;

     if (uTextAccessInChunkOrOutOfRange(text, nativeIndex, nativeLength, forward, isAccessible))

@@ -356,7 +356,7 @@ static UBool uTextLatin1ContextAwareAccess(UText* text, int64_t nativeIndex, UBo

         ASSERT(newContext == UTextProviderContext::PriorContext);

         textLatin1ContextAwareSwitchToPriorContext(text, nativeIndex, nativeLength, forward);

     }

-    return TRUE;

+    return true;

 }

 static int32_t uTextLatin1ContextAwareExtract(UText*, int64_t, int64_t, UChar*, int32_t, UErrorCode* errorCode)

diff --git a/Source/WebCore/platform/text/icu/UTextProviderUTF16.cpp b/Source/WebCore/platform/text/icu/UTextProviderUTF16.cpp

index 7aaac48..9ae0d36 100644

--- a/Source/WebCore/platform/text/icu/UTextProviderUTF16.cpp

+++ b/Source/WebCore/platform/text/icu/UTextProviderUTF16.cpp

@@ -125,7 +125,7 @@ static inline int64_t uTextUTF16ContextAwareNativeLength(UText* text)

 static UBool uTextUTF16ContextAwareAccess(UText* text, int64_t nativeIndex, UBool forward)

 {

     if (!text->context)

-        return FALSE;

+        return false;

     int64_t nativeLength = uTextUTF16ContextAwareNativeLength(text);

     UBool isAccessible;

     if (uTextAccessInChunkOrOutOfRange(text, nativeIndex, nativeLength, forward, isAccessible))

@@ -145,7 +145,7 @@ static UBool uTextUTF16ContextAwareAccess(UText* text, int64_t nativeIndex, UBoo

         ASSERT(newContext == UTextProviderContext::PriorContext);

         textUTF16ContextAwareSwitchToPriorContext(text, nativeIndex, nativeLength, forward);

     }

-    return TRUE;

+    return true;

 }

 static int32_t uTextUTF16ContextAwareExtract(UText*, int64_t, int64_t, UChar*, int32_t, UErrorCode* errorCode)