fix all the false --> NULL issues in the gradient code

BUG=

Review URL: https://codereview.appspot.com/7095056

git-svn-id: http://skia.googlecode.com/svn/trunk@7170 2bbb7eff-a529-9590-31e7-b0007b416f81

5 files changed, 5 insertions, 5 deletions

diff --git a/src/effects/gradients/SkLinearGradient.cpp b/src/effects/gradients/SkLinearGradient.cpp
index 8ae764607a..fc5653b6fd 100644
--- a/src/effects/gradients/SkLinearGradient.cpp
+++ b/src/effects/gradients/SkLinearGradient.cpp
@@ -550,7 +550,7 @@ GrEffect* SkLinearGradient::asNewEffect(GrContext* context, const SkPaint&) cons
     SkASSERT(NULL != context);
     SkMatrix matrix;
     if (!this->getLocalMatrix().invert(&matrix)) {
-        return false;
+        return NULL;
     }
     matrix.postConcat(fPtsToUnit);
     return SkNEW_ARGS(GrLinearGradient, (context, *this, matrix, fTileMode));
diff --git a/src/effects/gradients/SkRadialGradient.cpp b/src/effects/gradients/SkRadialGradient.cpp
index b9c4e3b1dd..d31cebd616 100644
--- a/src/effects/gradients/SkRadialGradient.cpp
+++ b/src/effects/gradients/SkRadialGradient.cpp
@@ -574,7 +574,7 @@ GrEffect* SkRadialGradient::asNewEffect(GrContext* context, const SkPaint&) cons
 
     SkMatrix matrix;
     if (!this->getLocalMatrix().invert(&matrix)) {
-        return false;
+        return NULL;
     }
     matrix.postConcat(fPtsToUnit);
     return SkNEW_ARGS(GrRadialGradient, (context, *this, matrix, fTileMode));
diff --git a/src/effects/gradients/SkSweepGradient.cpp b/src/effects/gradients/SkSweepGradient.cpp
index 918bf91a2d..8e7ef96a15 100644
--- a/src/effects/gradients/SkSweepGradient.cpp
+++ b/src/effects/gradients/SkSweepGradient.cpp
@@ -475,7 +475,7 @@ void GrGLSweepGradient::emitCode(GrGLShaderBuilder* builder,
 GrEffect* SkSweepGradient::asNewEffect(GrContext* context, const SkPaint&) const {
     SkMatrix matrix;
     if (!this->getLocalMatrix().invert(&matrix)) {
-        return false;
+        return NULL;
     }
     matrix.postConcat(fPtsToUnit);
     return SkNEW_ARGS(GrSweepGradient, (context, *this, matrix));
diff --git a/src/effects/gradients/SkTwoPointConicalGradient.cpp b/src/effects/gradients/SkTwoPointConicalGradient.cpp
index 6fab6d4c60..37b8a51233 100644
--- a/src/effects/gradients/SkTwoPointConicalGradient.cpp
+++ b/src/effects/gradients/SkTwoPointConicalGradient.cpp
@@ -690,7 +690,7 @@ GrEffect* SkTwoPointConicalGradient::asNewEffect(GrContext* context, const SkPai
     // invert the localM, translate to center1, rotate so center2 is on x axis.
     SkMatrix matrix;
     if (!this->getLocalMatrix().invert(&matrix)) {
-        return false;
+        return NULL;
     }
     matrix.postTranslate(-fCenter1.fX, -fCenter1.fY);
 
diff --git a/src/effects/gradients/SkTwoPointRadialGradient.cpp b/src/effects/gradients/SkTwoPointRadialGradient.cpp
index 61ed3d55a1..075e940e13 100644
--- a/src/effects/gradients/SkTwoPointRadialGradient.cpp
+++ b/src/effects/gradients/SkTwoPointRadialGradient.cpp
@@ -662,7 +662,7 @@ GrEffect* SkTwoPointRadialGradient::asNewEffect(GrContext* context, const SkPain
     // invert the localM, translate to center1 (fPtsToUni), rotate so center2 is on x axis.
     SkMatrix matrix;
     if (!this->getLocalMatrix().invert(&matrix)) {
-        return false;
+        return NULL;
     }
     matrix.postConcat(fPtsToUnit);